PATENT CLAIM ANALYSIS

Application Number: 15976893
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["525", "060000"]

Abstract:
A modified PVA that enables formation of a film superior in cold water solubility, mechanical strength, and chemical resistance is provided. The modified PVA comprises a monomer unit represented by formula (I), and a structural unit represented by formula (II): wherein: a content of the monomer unit (I) is from 0.05 mol % to 10 mol %, and a content of the structural unit (II) is from 0.001 mol % to 0.5 mol % with respect to the total monomer units in the modified PVA; a viscosity average degree of polymerization is from 300 to 3,000; and a degree of saponification is from 82 mol % to 99.5 mol %. In the formula (I): R 1  represents a hydrogen atom, or a methyl group; and R 2  represents —R 3 —SO 3 − X + , —R 3 —N + (R 4 ) 3 Cl − , or a hydrogen atom, R 3  representing an alkanediyl group, X +  representing a hydrogen atom, a metal atom, or an ammonium group, and R 4  representing an alkyl group.

Claim (Index 1):
A modified polyvinyl alcohol comprising a monomer unit represented by formula (I), and a structural unit represented by formula (II): wherein in the formula (I),\n R 1  represents a hydrogen atom, or a linear or branched alkyl group having 1 to 8 carbon atoms, and \n R 2  represents \u2014R 3 \u2014SO 3 \u2212 X + , \u2014R 3 \u2014N + (R 4 ) 3 Cl \u2212 , or a hydrogen atom,\n R 3  representing a linear or branched alkanediyl group having 1 to 10 carbon atoms, \n X +  representing a hydrogen atom, a metal atom, or an ammonium group, and \n R 4  representing a linear or branched alkyl group having 1 to 5 carbon atoms, wherein a plurality of R 4 s are identical or different; and \n \n wherein in the formula (II),\n R 5  represents a hydrogen atom, or a linear or branched alkyl group having 1 to 8 carbon atoms, \n wherein: a percentage content of the monomer unit represented by the formula (I) with respect to total monomer units in the modified polyvinyl alcohol is 0.05 mol % or greater and 10 mol % or less; a percentage content of the structural unit represented by the formula (II) with respect to the total monomer units in the modified polyvinyl alcohol is 0.001 mol % or greater and 0.5 mol % or less; a viscosity average degree of polymerization is 300 or greater and 3,000 or less; and a degree of saponification is 82 mol % or greater and 99.5 mol % or less.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 93.0
- Lexical Diversity: 2.40698
- Patent Class: 525.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15517591', '15517749', '15514288', '13703140', '14351734']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8022328512978367
- 35 USC 102 Novelty (BERT): 0.5337865292951959
- Combined Prediction Score: 0.7753882190975727
- Mean Citation Score: 352.71728
- Max Citation Score: 410.06473
- Similarity Product: 397.71433181687655

Labels:
- Claim Label 101: 0
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 0

Dataset: test