PATENT CLAIM ANALYSIS

Application Number: 15781879
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["525", "242000"]

Abstract:
The present invention provides vinyl halide polymer thermoplastic polymer compositions comprising a multi-stage, or, preferably, two-stage acrylic copolymer polymeric additive having (A) a high Tg, high molecular weight first stage polymer that is free of, in copolymerized form, vinyl aromatic monomers, and having (B) a low Tg, low molecular weight second stage polymer of copolymerized vinyl aromatic containing monomers, wherein the multi-stage acrylic copolymer can be isolated by coagulation and drying and provides compositions having both melt strength and lubrication in thermoplastic processing.

Claim (Index 1):
A thermoplastic polymer composition comprising (i) a vinyl halide polymer, and (ii) from 0.1 to 12 phr (parts solids per hundred weight parts solids of vinyl chloride polymer) of a multi-stage acrylic copolymer having a first stage polymer and a second stage polymer, (A) the first stage polymer of from 25 to 78.5 wt. %, of, in copolymerized form, (a) at least one C 1  to C 6  alkyl methacrylate or C 1  to C 4  alkyl acrylate, from 0 to 75 wt. % of (b) one or more and other polar vinyl monomers, and no more than 10 wt. % of (c) vinyl aromatic monomers, all monomer proportions, based on the total weight of monomers used to make the first stage polymer, the first stage polymer having a weight average molecular weight as measured by gel permeation chromatography (GPC) against polystyrene standards of from 1\u00d710 6  to 10\u00d710 6  g/mol and having a glass transition temperature as calculated by the Fox Equation (calculated Tg) of from 70 to 105\u00b0 C.; and (B) a second stage polymer of, in copolymerized form, (d) at least one C 4  to C 18  alkyl acrylate or C 8  to C 18  alkyl methacrylate, from 0 to 75 wt. % total of (c) one or more vinyl aromatic monomers, and the remainder of (b) one or more polar vinyl monomers, all monomer proportions based on the total weight of monomers used to make the second stage polymer, the second stage polymer having a weight average molecular weight (Mw) as measured by GPC against polystyrene standards of from 1,000 to 100,000 g/mol, and having a calculated Tg of from \u221265 to 45\u00b0 C., the solids weight ratio of the first stage polymer (A) to the second stage polymer (B) ranging from 1:3 to 7:1, wherein the multistage acrylic copolymer is substantially free of added acid group functional monomers and such monomers in copolymerized form.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 94.0
- Lexical Diversity: 1.67241
- Patent Class: 525.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16070825', '15246583', '15320519', '15100762', '15082230']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7770149155255408
- 35 USC 102 Novelty (BERT): 0.4921868415257274
- Combined Prediction Score: 0.7485321081255596
- Mean Citation Score: 268.383448
- Max Citation Score: 297.2808
- Similarity Product: 232.4941592857361

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

Dataset: test