PATENT CLAIM ANALYSIS

Application Number: 16383951
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
Patent Classification: ["521", "172000"]

Abstract:
Polyester polyols made from thermoplastic polyesters are disclosed. The polyols can be made by heating a thermoplastic polyester such as virgin PET, recycled PET, or mixtures thereof, with a glycol to give a digested intermediate, which is then condensed with a dimer fatty acid to give the polyol. The invention includes a polyester polyol comprising recurring units of a glycol-digested thermoplastic polyester and a dimer fatty acid. The polyester polyol can also be made in a single step by reacting the thermoplastic polyester, glycol, and dimer acid under conditions effective to produce the polyol. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including aqueous polyurethane dispersions, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.

Claim (Index 3):
The process of  claim 1  wherein the PET or PETG and glycol are heated in the presence of a catalyst selected from the group consisting of zinc acetate and tetrabutyl titanate.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 100.0
- Lexical Diversity: 1.85135
- Patent Class: 521.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15805600', '14822528', '15083491', '15347924', '15079349']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8991652013748732
- 35 USC 102 Novelty (BERT): 0.5849107485228291
- Combined Prediction Score: 0.8677397560896688
- Mean Citation Score: 493.040376
- Max Citation Score: 573.7573
- Similarity Product: 395.438549216342

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