Polyamide composition
AssigneeKuraray Co., Ltd.
InventorsHideaki Oka, Hideharu Matsuoka, Toru Kuki
Life of this patent
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Abstract
Provided is a polyamide composition comprising 100 parts by weight of (A) a polyamide having dicarboxylic acid units containing 60 to 100 mol % of terephthalic acid units, and diamine units containing 60 to 100 mol % of 1,9-nonanediamine units and/or 2-methyl-1,8-octanediamine units, and 5 to 100 parts by weight of (B) a titanium oxide with an average particle size of 0.1 to 0.5 μm. The polyamide composition shows excellent heat resistance enough to withstand the SMT process, and gives a molded article with excellent whiteness and surface-reflectance.
Claims18
A polyamide composition, comprising
- 100 parts by weight of (A) a polyamide having dicarboxylic acid units comprising 60 to 100 mol % of terephthalic acid units, and diamine units comprising 60 to 100 mol % of 1,9-nonanediamine units and/or 2-methyl-1,8-octanediamine units;
- and
- 5 to 100 parts by weight of (B) a titanium oxide with an average particle size of 0.1 to 0.5 μm.
A molded article composed of a polyamide composition, wherein the polyamide composition comprises:
- 100 parts by weight of (A) a polyamide having dicarboxylic acid units comprising 60 to 100 mol % of terephthalic acid units, and diamine units comprising 60 to 100 mol % of 1,9-nonanediamine units and/or 2-methyl-1,8-octanediamine units;
- and
- 5 to 100 parts by weight of (B) titanium oxide with an average particle size of 0.1 to 0.5 μm.
A molded article composed of the polyamide composition, wherein the polyamide composition has a whiteness of at least 92 and comprises:
- 100 parts by weight of (A) a polyamide having dicarboxylic acid units comprising 60 to 100 mol % of terephthalic acid units, and diamine units comprising 60 to 100 mol % of 1,9-nonanediamine units and/or 2-methyl-1,8-octanediamine units;
- and
- 5 to 100 parts by weight of (B) titanium oxide with an average particle size of 0.1 to 0.5 μm.
A reflector composed of the polyamide composition, wherein the polyamide composition comprises:
- 100 parts by weight of (A) a polyamide having dicarboxylic acid units comprising 60 to 100 mol % of terephthalic acid units, and diamine units comprising 60 to 100 mol % of 1,9-nonanediamine units and/or 2-methyl-1,8-octanediamine units;
- and
- 5 to 100 parts by weight of (B) titanium oxide with an average particle size of 0.1 to 0.5 μm.
A reflector composed of a polyamide composition, wherein the polyamide composition has a whiteness of at least 92 and comprises:
- 100 parts by weight of (A) a polyamide having dicarboxylic acid units comprising 60 to 100 mol % of terephthalic acid units, and diamine units comprising 60 to 100 mol % of 1,9-nonanediamine units and/or 2-methyl-1,8-octenediamine units;
- and
- 5 to 100 parts by weight of (B) titanium oxide with an average particle size of 0.1 to 0.5 μm.
Dependencies are inferred from the claim text.