IP Library Granted Patent US 10,465,060
Granted Patent B2
US 10,465,060 · App. 15/517,387 · Granted Nov 5, 2019

Polyamide composition and molded article produced from the composition

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Quick Facts
Patent No.
US 10,465,060
App. No.
15/517,387
Granted
Nov 5, 2019
Kind
B2
Abstract

Provided is a polyamide resin composition comprising a polyamide resin, a PAN carbon fiber, carbon black, and a black dye, wherein the polyamide resin composition contains the PAN carbon fiber in an amount of 7.5 to 25% by weight, based on the weight of the composition, contains the carbon black in an amount of 0.01 to 0.55% by weight, based on the weight of the composition, and contains the black dye in an amount of 0.01 to 1.0% by weight, based on the weight of the composition.

Claims (12)

1. A fuel part requiring laser marking, comprising a polyamide resin composition comprising a polyamide resin, a PAN carbon fiber, carbon black, a black dye, a glass fiber, and a fluidity-increasing agent,

wherein the polyamide resin composition,

contains the PAN carbon fiber in an amount of 7.5 to 25% by weight, based on the weight of the composition,

contains the carbon black in an amount of 0.03 to 0.52% by weight, based on the weight of the composition,

contains the black dye in an amount of 0.02 to 0.5% by weight, based on the weight of the composition,

contains the glass fiber in an amount of 15 to 60% by weight, based on the weight of the composition, and

contains the fluidity-increasing agent in an amount of 0.01 to 5% by weight, based on the weight of the composition,

wherein the polyamide resin consists of at least one polyamide resin selected from the group consisting of polyamide 6, polyamide 66, polyamide 610, polyamide 1010, polyamide 6/66, polyamide 11, polyamide 12, polyamide 6/12, and polyamide 6/66/12.

2. The fuel part according to claim 1 , wherein the polyamide resin composition contains the black dye in an amount of 0.05 to 0.3% by weight, based on the weight of the composition.

3. The fuel part according to claim 1 , wherein the polyamide resin comprises a polyamide resin having a terminal amino group concentration which is larger than a terminal carboxyl group concentration.

4. The fuel part according to claim 1 , wherein the polyamide resin is polyamide 6 and/or polyamide 66.

5. The fuel part according to claim 1 , wherein the fluidity-increasing agent is at least one polyhydric alcohol selected from the group consisting of pentaerythritol, dipentaerythritol, and trimethylolethane.

Assignments (2)
CHANGE OF NAME Recorded Jul 14, 2023
From: UBE INDUSTRIES, LTD.
To: UBE CORPORATION
Reel/Frame 064275/0021 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 7, 2017
From: MIYAMOTO, AKIO; FUKUI, YASUHARU; AKATSU, HIROKI; TONARI, MASAYA
To: UBE INDUSTRIES, LTD.
Reel/Frame 041930/0605 →