SEARCHING VALUE ADDED POLYMER INDEXING IN DWPI, DCR & DWPIM ON NEW STN BRIAN LARNER & JIM BROWN OCTOBER 2016

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1 SEARCHING VALUE ADDED POLYMER INDEXING IN DWPI, DCR & DWPIM ON NEW STN BRIAN LARNER & JIM BROWN OCTOBER 2016

2 AGENDA What is polymer indexing? Why use it? How to carry out searches Examples Polymers in DCR Search example Polymers in DWPIM Search example 2

3 DWPI POLYMER INDEXING

4 POLYMER INDEXING SYSTEMS IN DWPI Enhanced Polymer Indexing The most comprehensive system Only available to CPI subscribers Commenced in 1993 Prior to that the older Plasdoc coding system was used Derwent Markush Resource (DWPIM) More restrictive coverage (mostly pharma/agrochemical patents) Additional subscription required (via GVP or OAL) Derwent Chemistry Resource (DCR) More restrictive coverage Accessible by Non-CPI subscribers 4

5 CPI SECTIONS A Polymers & plastics B Pharmaceuticals C Agrochemicals D Food, detergents, water treatment, biotechnology E General chemicals F Textiles & paper G Printing, coating & photographic H Petroleum J Chemical Engineering K Nucleonics, explosives & protection L Refractories, glass, ceramics cement & electro(in)organics M Metallurgy 5

6 ENHANCED POLYMER INDEXING Deep indexing system covering all important polymer related information from the patent both generic and specific concepts are indexed Indexing contains information not present in the Derwent online abstract generates unique hits compared to text searching, IPC s etc. 6

7 WHY USE POLYMER INDEXING [1] The enhanced Polymer Indexing system was created in conjunction with the main users of the product It is the system they said would meet their needs for searching polymer related patent information Searching Polymer Indexing allows you to make use of our subject experts analysis and understanding of the patent The analyst will read through the patent document and identify what the key polymer related concepts are and apply the relevant codes So unlike keyword searching you don t get hits based on trivial references to a concept or cases where it says in the patent anything except that concept o For example searching on the word polyethylene would give you a hit on a patent which stated it used any polyolefin other than polyethylene 7

8 WHY USE POLYMER INDEXING [2] The polymer indexing system utilises a unique code linking system to ensure you only get hits when concepts which are directly related are mentioned so you get a more focused answer set with little or no noise For instance with most systems a patent talking about an item of clothing made out of polyester wrapped in a polypropylene sheet would simply code the 4 concepts, polypropylene, polyester, sheet & clothing o Polymer indexing codes clothing linked to polyester & sheet linked to polypropylene so you would not get a hit on a patent about a polyester sheet or polypropylene clothing 8

9 ENHANCED POLYMER INDEXING SYSTEM Replaced Plasdoc Coding Coverage starts from update Both old and new indexing available from update to Enhanced Polymer Indexing ONLY from update to date 9

10 INFORMATION INDEXED All polymer related information is indexed from: patent claims DWPI documentation abstract claims related example 10

11 STRUCTURAL INFORMATION INDEXED CODE FORMAT Polymer Formers (Rnnnnn, Gnnnn) i.e. monomers and condensants Polymer Types (Pnnnn) Modified Polymers (Mnnnn) Natural Polymers (Rnnnnn, Gnnnn) Chemicals (Rnnnnn, Gnnnn) Modifying Agents (Rnnnnn, Gnnnn) Chemical Aspects (Dnn, Dnnn, Enn, Fnn, Fnnn) i.e. chemical fragment codes 11

12 NON-STRUCTURAL INFORMATION INDEXED CODE FORMAT Novelty Descriptors (NDnn) Universal Terms (Knnnn) Polymer Descriptors (Hnnnn) e.g. thermoplastic, graft copolymer Shape & Form (Snnnn) e.g. fibre, powder, foam Additive Type (Annn) Catalyst Type (Cnnn) 12

13 NON-STRUCTURAL INFORMATION INDEXED CODE FORMAT Chemical Processes (Lnnnn) Physical Operations (Nnnnn) Equipment (Jnnnn) Properties (Bnnnn) Polymer Applications (Qnnnn) 13

14 New STN 14 14

15 Searching polymer codes on new STN 15 Use /PLE search qualifier in DWPI on new STN 15

16 NOT COVERED BY POLYMER INDEXING Starting materials and intermediates for polymer formers and additives Chemical processes for catalyst production Generic or Markush Modifying Agents Starting materials, chemical processes, intermediates, or catalysts for modifying agent production Compounds present which are not additives, catalysts or modifying agents for the polymer e.g. a cosmetic containing vitamin E and carboxymethylcellulose 16

17 SPECIFIC COMPOUND NUMBERS - SCN Common fully defined compounds have their own codes - SCNs code format: Rnnnnn e.g. R sodium acrylate All polymer formers are indexed either by SCNs or generic codes (Gnnnn) As each SCN has a corresponding DCR number this is auto-posted in the polymer indexing This means you can search on the DCR number instead of the SCN if you wish 17

18 18 Searching polymer codes on new STN Use /PLE search qualifier in DWPI on new STN Even when searching DCR numbers in polymer indexing 18

thereof G0282 NT Acrylic acid + salts Monoolefinic only R00446 NT Acrylc acid R24001

19 HIERARCHICAL STRUCTURE OF CODES Polymer Formers G0022 Monoolefinic... G0260 NT Acrylics monoolefinic G0271 NT Acrylic acids monoolefinic Including Salts thereof G0282 NT Acrylic acid + salts Monoolefinic only R00446 NT Acrylc acid R24001 NT Sodium acrylate R24000 NT Potassium acrylate G0293 NT Acrylic acid salt, other NT - Narrower Term 19

20 AUTO-POSTING In addition to the codes chosen by the indexer, the online record contains related codes that are automatically indexed Two types of auto-posting: Up-posting o all broader codes further up the hierarchy from the indexed code are automatically indexed Cross-posting o related codes from other hierarchies are additionally indexed Benefit - easy generic searching 20

21 UP-POSTING Additives A566 Surfactant... A624 NT Dispersant (+ A566 auto-posted) A635 NT Emulsifier (+ A566, A624 auto-posted) A646 NT Protective colloid (+ A566, A624 auto-posted) 21

CROSS-POSTING R24001 Sodium Acrylate CH2=CHCOONa All relevant chemical aspect codes are auto-posted: D01 Organic D26 Acrylic unsaturated chain (96) D12 Unsaturated chain D10 Aliphatic chain D53

22 CROSS-POSTING R24001 Sodium Acrylate CH2=CHCOONa All relevant chemical aspect codes are auto-posted: D01 Organic D26 Acrylic unsaturated chain (96) D12 Unsaturated chain D10 Aliphatic chain D53 Monoolefinic unsaturation D51 Unsaturation containing D58 Terminal olefinic unsaturation D61 Salt/Complex D83 Carbon Count F36 Monocarboxylic acid (salt) F35 Carboxylic acid (salt) Na Sodium 1A Group 1A 22

23 LINKING [1] Related codes are indexed together in distinct online sub-fields Three different types of sub-field are used, each level of sub-field is searchable with an online proximity operator three 'levels of linking', referred to as level 1, level 2 and level 3 Related codes can be searched together in the way that they were indexed, maximising accuracy and minimising noise 23

24 LINKING [2] Each separate polymer concept is linked to its associated terms (additives, catalysts, properties, applications etc.) to form a LINKING GROUP There may be several linking groups in the online record Each linking group is separated from the other linking groups 24

25 LINKING [3] Example 1 - A patent describing a new bottle made from polyethylene terephthalate and having a cap made from polyolefin e.g. polypropylene or ethylene copolymer. This patent has two polymer concepts (bottle and cap) and so would be indexed as two linking groups. Example 2 - A patent for a new tri-layer film, the outermost layer is heat resistant polyamide, the middle layer is aluminium and the inner layer is impermeable PVC. Again this patent has two polymer concepts (outer layer and inner layer), so two linking groups would be made. 25

26 LINKING [4] All codes within a linking group are linked together at LEVEL 3 LEVEL 1 and LEVEL 2 linking are used to indicate closely related codes within the linking group e.g. 'graft copolymer' linked to 'acrylonitrile' and 'butadiene' To search for codes from different linking groups the AND operator must be used 26

27 THREE LEVELS OF LINKING Level 3 - Widest level - Linking group links related substances o e.g. polymer with additive(s) links polymer with properties and applications Level 2 - Middle level - Indexing 'paragraph' for each substance links a compound with its function or shape & form links co-monomers in a copolymer Level 1 - Tightest level - Indexing 'sentence' linking Chemical Aspect codes 27

28 LINKING GROUP EXAMPLE Polymer composition styrene-maleic anhydride binary copolymer calcium carbonate filler zinc stearate lubricant granulation into a powder Linking diagram to help visualise the linking levels Format for the online record what the indexing looks like online 28

LINKING DIAGRAM 3 2 1 Styrene 1 Maleic anhydride Binary copolymer Powder 2 2

29 LINKING DIAGRAM Styrene 1 Maleic anhydride Binary copolymer Powder 2 2 Filler Lubricant 1 Calcium carbonate 1 Zinc stearate Granulating Filled resin 29

30 30 Three linking operators on new STN Linking level New STN Proximity operator (3) (widest) (U1) (2) (middle) (U2) (1) (tightest) (U3) 30

31 31 STN Linking Operators U1 U2 U3 Styrene U3 Maleic anhydride Binary copolymer Powder U2 Filler U3 Calcium carbonate U2 Lubricant U3 Zinc stearate Granulating Filled resin

32 32 Linking operator example on new STN Styrene (Level 2) Maleic Anhydride (Level 2) Binary Copolymer (Level 2) Powder Calcium Carbonate (Level 2) Filler Zinc Stearate (Level 2) Lubricant Granulating (Level 3) Filled Resin (Level 3) above sets 32

33 33 Linking operator example on new STN (cont.) Styrene (U2) Maleic Anhydride (U2) Binary Copolymer (U2) Powder Calcium Carbonate (U2) Filler Zinc Stearate (U2) Lubricant Granulating (U1) Filled Resin (U1) above sets 33

34 34 Linking operator example on new STN (cont.) Styrene Maleic Anhydride Binary Copolymer Powder Calcium Carbonate Filler Zinc Stearate Lubricant Granulating Filled Resin R00708 R00843 H0022 S1514 R01278 A237 R01377 A340 N6144 K9449 The Derwent Polymer Indexing Hierarchy was used to find the appropriate codes. 34

35 35 Linking operator example on new STN (cont.) (R00708 (U2) R00843 (U2) H0022 (U2) S1514)/PLE (R01278 (U2) A237)/PLE (R01377 (U2) A340)/PLE (N6144 (U1) K9449)/PLE L1 (U1) L2 (U1) L3 (U1) L4 Note: Search the Derwent polymer codes in DWPI on new STN by using the /PLE search qualifier. 35

36 Derwent Polymer Search Example 36 36

37 37 Why did this search retrieve zero hits? The strategy was too specific Revise strategy to broaden as needed Search polymer without powder concept? Any filler? Any lubricant? Remove filler and lubricant concepts altogether? 37

38 38 DWPI Polymer Query revisions Compared to first strategy, the following concepts were removed Powder from Styrene-Maleic anhydride copolymer set Calcium carbonate from filler set Zinc stearate from lubricant set 38

39 Revised Derwent Polymer Search Example 39 39

40 DWPI Polymer Indexing Results record on new STN 40 40

41 LEVELS OF LINKING (STN) Sub-fields are marked e.g. [1.1], [1.2], [1.3], [2.1], [2.2], [3.1] etc. Level 3 - the number to the left of the full-stop (period) indicates the linking group number o e.g. [1.1], [1.2] and [1.3] belong to linking group 1; [2.1] and [2.2] belong to linking group 2 o accessed using the (U1) proximity operator Level 2 - the number to the right of the full-stop (period) indicates the paragraph number within the linking group o e.g. [1.3] is paragraph 3 in linking group 1 o accessed using the (U2) operator Level 1 - within the paragraph, sentences of indexing start and stop with the semi-colon character ; o e.g. ; R01278 D00 F44 C- 4A O- 6A Ca 2A ; o accessed using the (U3) operator 41

42 LINKING LEVEL TABLE Example Polymer Type codes link to Additive codes at level 3 FACET Polymer Type Polymer Former Additive Catalyst Modifying Agent Pnnnn Rnnnnn Gnnnn Annn Cnnn Polymer Descriptor Hnnnn H N/A N/A N/A H N/A N/A N/A H N/A 1 N/A N/A N/A Polymer Former Rnnnnn/Gnnnn Polymer Type Pnnnn AND# Natural Polymer Rnnnnn/Gnnnn

e. ethylene + propylene + binary copolymer For ease of searching, common polymers are also searchable

43 ADDITION POLYMERS All addition polymers have monomer-based indexing, e.g. polymethylmethacrylate: (R00479 (2) H0000) i.e. methylmethacrylate + homopolymer ethylene propylene copolymer: (R00326 (2) R00964 (2) H0022) i.e. ethylene + propylene + binary copolymer For ease of searching, common polymers are also searchable as a single code, e.g. polymethylmethacrylate: P0113 ethylene-propylene copolymer: P

44 Derwent Addition Polymer Search Example 44 Note: For addition polymers, both strategies retrieve the same records. 44

45 CONDENSATION POLYMERS Monomers/condensants are only indexed when stated in the patent, e.g. polyethyleneterephthalate from ethylene glycol and terephthalic acid is indexed as: (P0884 (2) R00822 (2) R00702 (2) H0022) i.e. PET + ethylene glycol + terephthalic acid + binary copolymer PET with no further information is indexed P0884 only for all references to PET, just search P

46 Derwent Condensation Polymer Search Example 46 Note: For condensation polymers, the two strategies will NOT retrieve the same records. 46

47 CONDENSATION POLYMERS When no polymer formers are stated, the polymers are indexed as a structural repeat unit (SRU), e.g. O O O O n Indexed as (P1978 (1) D01 (1) D14 (1) D19 (1) D32 (1) D76 (1) D50 (1) D93 (1) E21 (1) F90) i.e. polyester polymer type code + chemical aspects for the repeat unit 47

48 Derwent SRU Search Example 48 48

49 CONDENSATION POLYMERS If polymer formers are stated, these are indexed e.g. if the polymer from the previous slide is prepared from terephthalic acid and 1,4-cyclohexane diol, the indexing is: (P1978 (2) R00702 (2) (G1069 (1) D01 (1) D14 (1) D31 (1) D76 (1) D50 (1) D86 (1) F28) (2) H0022) i.e. polyester polymer type + terephthalic acid + (other diol + chemical aspects For complete retrieval, search both SRU and monomer based for indexing cyclohexane diol) + binary copolymer 49

50 Derwent Combination Polymer Search Example 50 50

51 Derwent Combination Polymer Search Example 51 Note: For comprehensive retrieval, both strategies should be considered. 51

52 SEARCHING FOR ADDITIVES Additives can be searched by chemical composition by function Triethylphosphate heat stabiliser R00424 (2) A511 52

53 SEARCHING FOR CATALYSTS Catalysts can be searched: by chemical composition by type by function Potassium persulphate free radical initiator R01737 (2) C088 53

54 BUILDING SEARCH STRATEGIES [1] Create separate search statements for each component for polymeric components for non-polymeric components Combine the statements together with the appropriate proximity operators 54

55 BUILDING STRATEGIES [2] Suspension copolymerisation of vinyl chloride and an alphaolefin using a dispersant and an azo catalyst Polymer: L1 R00338 (2) G0033 (2) H0022 (2) L2675 Additive: L2 A624 Catalyst: L3 F13 (2) C293 Combine statements together: L4 ( L1 (3) L2 (3) L3 ) 55

56 Derwent Polymer Search Example 56 Note: If a polymer code starts with L or Q, it must be put in quotes (i.e., L2675 ) for the system to recognize the code. 56

57 MANUALS & USER AIDS Available in print or as pdf download from: Polymer Indexing System Description Polymer Indexing Hierarchy Polymer Indexing Reference Manual Polymer Indexing Dictionary Polymer Indexing Thesaurus 57

58 POLYMERS IN DCR

59 POLYMERS IN DCR Around 340 common polymers have their own DCR records which are cited whenever that substance is mentioned in a patent indexed in CPI sections B, C or E In addition new DCR records are created for polymers in the following situations Polymeric dyes in Section E Polymeric drugs Polymeric excipients in drug/agrochemical formulations (mostly polyoxyalkylene derivatives or silicones) This has been done since 1999/2000 The records can be found by searching for the polymer in the chemical name field This should include any common synonyms or trade names Search on POLYMERS in the substance descriptor (/SD) field to pull up the full list 59

60 Typical DCR Polymer record 60 60

61 Corresponding DWPI records 61 Note: To get the corresponding patent families for a DCR substance in an L query for further refinement, use the REFX command. 61

62 Derwent Polymer Searching on new STN 62 Note: For comprehensive retrieval, search the polymer concept both as a DCR compound and through the Derwent polymer indexing. 62

63 CLASSES OF POLYMER IN DCR Cyclodextrins Dendrimers Glycoproteins Lipoproteins Polymers (other than specific types listed here) Polysacchsardies Proteins Silicones 63

64 POLYMERS IN DWPIM

65 MARKUSH INDEXING OF POLYMERS Polymers are indexed in the Derwent Markush Resource (DWPIM) in the following circumstances Any polymer which is the main inventive feature in a pharmaceutical or agrochemical patent (CPI Sections B and/or C) Additionally the following polymers are also indexed in Section E patents Non-ionic surfactants based on polyoxyalkylene units where the range is unspecified or is stated to include oligomers (10 or less repeat units) Silicones & siloxanes when the range can include oilgomers (10 or less repeat units) 65

66 POLYMERS IN SECTION B&C PATENTS Addition polymers are indexed as the monomers For co-polymers each monomer is indexed but they may be combined into a single Markush that covers them all Substance descriptors applied reflect the monomers (usually V (organic compound) or Z (salt)) Roles applied include Q Condensation polymers are indexed as the structural repeat unit where possible Will include at least 2 repeat units whenever possible Substance descriptors include F (for synthetic polymers) or N (for natural polymers) 66

67 EXAMPLE ADDITION POLYMER RECORD Accession number MCN number Substance descriptors A B E V Y Roles Q + M Covers polymers of vinyl chloride, vinyl bromide or vinyl fluoride Other monomers also indexed in same record 67

68 NON-IONIC SURFACTANTS Non-polar group drawn out in full using real atoms or super atoms as necessary Several polyoxyalkylene units indexed using real atoms or superatoms as necessary File segments V and L indexed (possibly plus F) 68

69 Polymer Searching in DWPIM SSS search 69 69

70 Derwent Polymer Searching on new STN 70 70

71 Derwent Polymer Searching on new STN 71 71

72 Polymer Searching in DWPIM 72 72

73 SILICONES / POLYSILOXANES 2 or more repeat units shown File segments include (V and L) or F Example MCN number

74 Derwent Polymer Searching on new STN 74 74

75 Derwent Polymer Searching in DCR 75 75

76 Derwent Polymer Searching in DWPIM 76 76

77 Corresponding DWPI records with Hit Structures 77 77

SEARCHING DWPI POLYMER INDEXING ON NEW STN

SEARCHING DWPI POLYMER INDEXING ON NEW STN BRIAN LARNER IP & SCIENCE THOMSON REUTERS JIM BROWN SENIOR KEY ACCOUNT MANAGER - FIZ KARLSRUHE 19 th November 2015 AGENDA Introduction to DWPI Polymer Indexing