PATENT CLAIM ANALYSIS

Application Number: 15943960
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["428", "3550AC"]

Abstract:
Described herein is a pressure-sensitive adhesive composition containing an acrylic block copolymer (I) having a polymer block (A) containing methacrylic acid ester units and a polymer block (B) containing acrylic acid ester units which are derived from an acrylic acid ester (1) represented by the general formula CH 2 ═CH—COOR 1  (1) (wherein R 1  is an organic group of 4 to 6 carbon atoms) and an acrylic acid ester (2) represented by the general formula CH 2 ═CH—COOR 2  (2) (wherein R 2  is an organic group of 7 to 12 carbon atoms), the mass ratio (1)/(2) of said acrylic acid ester (1) to said acrylic acid ester (2) being 65/35 to 20/80. The tanδ value of viscoelasticity of the acrylic block copolymer (I), as measured at a frequency of 1 Hz, is 1×10 −2  to 1×10 −1  in the range of 50 to 100° C.

Claim (Index 1):
A pressure-sensitive adhesive composition, comprising an acrylic block copolymer (I) in an amount of not less than 40% by mass based on the total amount of solid components of the pressure-sensitive adhesive composition, said acrylic block copolymer (I) having at least one polymer block (A) comprising methacrylic acid ester units and at least one polymer block (B) comprising acrylic acid ester units and having a weight-average molecular weight (Mw) of 30,000 to 300,000 and a molecular weight distribution (Mw/Mn) of 1.0 to 1.5,\n wherein: the acrylic acid ester units to constitute the polymer block (B) are derived from an acrylic acid ester (1) represented by the general formula CH 2 \u2550CH\u2014COOR 1  (1) (wherein R 1  is an organic group of 4 to 6 carbon atoms) and an acrylic acid ester (2) represented by the general formula CH 2 \u2550CH\u2014COOR 2  (2) (wherein R 2  is an organic group of 7 to 12 carbon atoms), and the mass ratio (1)/(2) of the acrylic acid ester (1) to the acrylic acid ester (2) is 65/35 to 20/80; and the tan\u03b4 value of viscoelasticity of the acrylic block copolymer (I), as measured at a frequency of 1 Hz, is 1\u00d710 \u22122  to 1\u00d710 \u22121  in the range of 50 to 100\u00b0 C.

Metadata:
- Claim Count in Document: 27.0
- Percentile: 91.0
- Lexical Diversity: 2.42667
- Patent Class: 428.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14395893', '13701601', '15031224', '15569571', '15546198']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9126794047251624
- 35 USC 102 Novelty (BERT): 0.5291891538673409
- Combined Prediction Score: 0.8743303796393802
- Mean Citation Score: 330.879404
- Max Citation Score: 369.35873
- Similarity Product: 307.27591219215867

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

Dataset: test