PATENT CLAIM ANALYSIS

Application Number: 16322950
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-05
Patent Classification: ["525", "437000"]

Abstract:
A different shrinkage composite yarn and preparation method. The modified polyester is spun with a porous spinneret to produce a different shrinkage composite yarn, and the spinneret holes on the porous spinneret are arranged in an elliptical arrangement. The different shrinkage composite yarn is obtained by winding modified polyester POY yarn and FDY yarn, network recombining, and coiling them. The preparation method of modified polyester is as follows: terephthalic acid reacts with ethylene glycol to produce ethylene terephthalate. The modified polyester is obtained by the reaction of terephthalic acid with branched diol. The fiber of the invention has good properties and the deviation rate of fiber density. The CV value of breaking strength is ≤4.0%, the CV value of elongation at break is ≤8.0%, the CV value of coefficient of variation of coiling shrinkage is ≤8.0%.

Claim (Index 1):
A different shrinkage composite yarn, comprising a modified polyester, and the modified polyester is composed of a terephthalic acid chain, an ethylene glycol chain and a diol chain containing a branched chain;\n a size of the different shrinkage composite yarn is 100-150 dtex; a breaking strength is \u22651.9 CN/dtex, an elongation at break is 30.0\u00b15.0; at a temperature of 80\u00b0 C.-130\u00b0 C., a space gap between molecular chains in the modified polyester increases by 10-30 v/v %; a deviation rate of fiber density of the different shrinkage composite yarn is \u22642.0%; a CV value of breaking strength is \u22644.0%, and a CV value of elongation at break is \u22648.0%, and a CV value of coiling shrinkage coefficient of variation is \u22648.0%, and crimp shrinkage is 3.50\u00b12.0%, and an oil content is 1.0\u00b10.2%, network degree is 20\u00b15 units/m; wherein, the increase of the space gap between the molecular chains refers to a comparison of the spatial gaps between molecular chains at a same temperature between the modified polyester and a common polyester; the branched diol is one or more items selected from the group consisting of a 2-pentyl-1,3 propanediol, a 2-hexyl-1,3 propanediol, a 2-heptyl-1,3 propanediol, a 2-octyl-1,3 propanediol, a 2-mercapto-1,3 propanediol, a 2-mercapto group-1,3 propanediol, a 2-pentyl-1,4 butanediol, a 2-hexyl-1,4 butanediol, a 2-heptyl-1,4 butanediol, a 2-octyl-1,4 butanediol, a 2-mercapto-1,4 butanediol, a 2-mercapto-1,4 butanediol, a 2-pentyl-1,5 pentanediol, a 2-hexyl-1,5-pentanediol, a 2-heptyl-1,5-pentanediol, a 2-octyl-1,5-pentanediol, a 2-mercapto group-1.5 pentanediol glycol, a 2-mercapto-1,5 pentanediol, a 2-pentyl-1,6 hexanediol segment, a 2-hexyl-1,6 hexanediol, a 2-heptyl-1,6-hexanediol, a 2-octyl-1,6-hexanediol, a 2-mercapto-1,6-hexanediol and a 2-mercapto-1,6 hexanediol.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 99.0
- Lexical Diversity: 2.11111
- Patent Class: 525.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16322952', '16322948', '15744869', '13579940', '15744841']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7833763667776031
- 35 USC 102 Novelty (BERT): 0.5563122493432044
- Combined Prediction Score: 0.7606699550341633
- Mean Citation Score: 344.208746
- Max Citation Score: 485.1724
- Similarity Product: 380.7614453564882

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

Dataset: test