PATENT CLAIM ANALYSIS

Application Number: 15769467
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["524", "523000"]

Abstract:
Provided are a methacrylic resin composition and a film containing a methacrylic resin that includes: 50 mass % to 97 mass % of a methacrylic acid ester monomer unit (A); 3 mass % to 30 mass % of a structural unit (B) having a cyclic structure-containing main chain; and 0 mass % to 20 mass % of another vinyl monomer unit (C) that is copolymerizable with a methacrylic acid ester monomer. The methacrylic resin satisfies the following conditions (1) and (2): (1) the methacrylic resin has a weight average molecular weight of 65,000 to 300,000 as measured by GPC; and (2) the total content of specific components is 0.01 mass % to 0.40 mass % as determined by GC/MS.

Claim (Index 12):
A method of producing a methacrylic resin including 50 mass % to 97 mass % of a methacrylic acid ester monomer unit (A), 3 mass % to 30 mass % of a structural unit (B) having a cyclic structure-containing main chain, and 0 mass % to 20 mass % of another vinyl monomer unit (C) that is copolymerizable with a methacrylic acid ester monomer, the method comprising:\n (1) a compounding step of adding monomer into a reactor; and (2) a polymerization step of adding a polymerization initiator into the reactor and carrying out a monomer polymerization reaction, wherein in (2) the polymerization step, when total time from starting addition of the polymerization initiator to ending addition of the polymerization initiator is taken to be B hours, in a period from starting addition of the polymerization initiator to 0.5\u00d7B hours thereafter, there is at least one instance in which an additive amount of the polymerization initiator per unit time is less than an additive amount of the polymerization initiator per unit time when starting addition of the polymerization initiator.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 91.0
- Lexical Diversity: 2.02899
- Patent Class: 524.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15880480', '15562040', '13394781', '13579671', '15912902']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8170791792145375
- 35 USC 102 Novelty (BERT): 0.4827348712552234
- Combined Prediction Score: 0.7836447484186062
- Mean Citation Score: 237.99593
- Max Citation Score: 253.07426
- Similarity Product: 202.5664046757913

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

Dataset: test