PATENT CLAIM ANALYSIS

Application Number: 15761333
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["524", "409000"]

Abstract:
The present invention discloses a glass fiber-reinforced flame retardant PBT composition which includes following components in parts by weight: 35 to 71 parts of a PBT resin; 5 to 30 parts of a flame retardant; and 5 to 50 parts of a glass fiber; based on a total weight of the glass fiber-reinforced flame retardant PBT composition, a content of tetrahydrofuran is less than/equal to 500 ppm and more than/equal to 10 ppm. In the present invention, when the content of tetrahydrofuran which is selected to be added in a formula of the glass fiber-reinforced flame retardant PBT composition, is less than/equal to 500 ppm and more than/equal to 10 ppm based on the total weight of the glass fiber-reinforced flame retardant PBT composition, a flowability and injection molding appearance of the glass fiber-reinforced flame retardant PBT composition can be apparently improved.

Claim (Index 19):
A preparation method for the glass fiber-reinforced flame retardant PBT composition according to  claim 6 , characterized in that, the preparation method includes following steps:\n a) preparing tetrahydrofuran and methylsiloxane into a solution of tetrahydrofuran/methylsiloxane with a mass fraction of 20 ppm to 1000 ppm; and b) mixing the solution of tetrahydrofuran/methylsiloxane with a PBT resin, a flame retardant and an adjuvant in a high-speed mixer for 1 to 2 minutes to obtain a premix, and the premix being melt and extruded at 220\u00b0 C. to 240\u00b0 C. in a double-screw extruder, side-fed with a glass fiber, cooled and pelletized to obtain the glass fiber-reinforced flame retardant PBT composition.

Metadata:
- Claim Count in Document: 54.0
- Percentile: 90.0
- Lexical Diversity: 2.57627
- Patent Class: 524.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12676760', '13981022', '14072945', '12517493', '15024249']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8375980378790209
- 35 USC 102 Novelty (BERT): 0.4995167198795386
- Combined Prediction Score: 0.8037899060790727
- Mean Citation Score: 245.99922400000003
- Max Citation Score: 255.01797
- Similarity Product: 164.38184082517682

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