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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12630709 B1

PDFFull Text
Date of Patent:
May. 19, 2026

Filed:

Dec. 26, 2022

Composite resin composition for automotive interior materials and automotive interior material including the same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Gun Ko, Daejeon, KR;

Seonho Kong, Daejeon, KR;

Sun Mo Son, Daejeon, KR;

Hyun Seok Lee, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:

Bryan Cave Leighton Paisner LLP

Primary Examiner:

Doris L Lee

Int. Cl.
CPC ...
C08L 67/02 (2006.01); B29C 48/00 (2019.01); B29C 48/40 (2019.01); C08K 3/32 (2006.01); C08K 5/13 (2006.01); C08K 7/14 (2006.01); C08K 9/02 (2006.01); B29K 67/00 (2006.01); B29K 309/08 (2006.01); B29L 31/30 (2006.01); B29L 31/34 (2006.01);
U.S. Cl.
CPC ...
C08L 67/02 (2013.01); B29C 48/022 (2019.02); B29C 48/40 (2019.02); C08K 3/32 (2013.01); C08K 5/13 (2013.01); C08K 7/14 (2013.01); C08K 9/02 (2013.01); B29K 2067/006 (2013.01); B29K 2309/08 (2013.01); B29K 2995/0016 (2013.01); B29K 2995/0082 (2013.01); B29L 2031/30 (2013.01); B29L 2031/3481 (2013.01); C08K 2003/324 (2013.01); C08K 2201/003 (2013.01); C08K 2201/004 (2013.01); C08L 2201/08 (2013.01); C08L 2205/035 (2013.01);
Abstract

Provided is a composite resin composition for automotive interior materials and an automotive interior material including the same. The composite resin composition comprises: 47 to 52 wt % of a polybutylene terephthalate resin; 10 to 28 wt % of a (meth)acrylate compound-conjugated diene compound-aromatic vinyl compound copolymer; 8 to 14 wt % of a polyethylene terephthalate resin; 0.1 to 2.2 wt % of a carboxy reactive epoxy resin; and 10 to 28 wt % of glass fiber containing SiO, CaO, and AlO, wherein an SiOcontent is greater than a sum of a CaO content and an AlOcontent. By changing conventional components, the composite resin composition for automotive interior materials provided herein has an effect of improving heat resistance, impact stability, and crystallization rate controllability, satisfying physical property balance between mechanical properties and fluidity, and providing excellent product reliability and appearance.

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