Polyamide resin composition having improved weathering resistance and its molded products
AssigneeMitsubishi Engineering-Plastics Corporation
InventorsKei Morimoto, Noriyoshi Watanabe, Hiroshi Urabe, Masaki Hirono, Kazuo Yamamiya
Life of this patent
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Abstract
The present invention relates to a polyamide resin composition comprising: 100 parts by weight of a polyamide resin mixture comprising (A) 20 to 90% by weight of a polyamide 6 resin, a polyamide 66 resin or mixture thereof and (B) 10 to 80% by weight of an aromatic polyamide resin; and (C) 0 to 300 parts by weight of an inorganic filler, said aromatic polyamide resin being having diamine units comprising 10 to 50 mol % of paraxylylenediamine units and 50 to 90 mol % of methaxylylenediamine units, and aliphatic dicarboxylic acid units.
Claims25
A polyamide resin composition consisting essentially of:
- 100 parts by weight of a polyamide resin mixture comprising
- (A) 20 to 90% by weight of a polyamide 6 resin, a polyamide 66 resin or mixture thereof and
- (B) 10 to 80% by weight of an aromatic polyamide resin;
- and
- (C) 0 to 300 parts by weight of an inorganic filler,
- said aromatic polyamide resin having diamine units comprising 10 to 50 mol % of paraxylylenediamine units and 50 to 90 mol % of methaxylylenediamine units, and aliphatic dicarboxylic acid units.
A polyamide resin composition consisting essentially of:
- 100 parts by weight of a polyamide resin mixture comprising
- (A) 20 to 90% by weight of a polyamide 6 resin, a polyamide 66 resin or mixture thereof and
- (B) 10 to 80% by weight of an aromatic polyamide resin;
- and
- (C) 0 to 300 parts by weight of an inorganic filler,
- said aromatic resin mainly comprising polyamide obtained from polycondensation reaction of a diamine mixture comprising 10 to 50 mol % of paraxylylenediamine and 50 to 90 mol % of methaxylylenediamine, and an aliphatic dicarboxylic acid.
A polyamide resin composition consisting essentially of:
- 100 parts by weight of a polyamide resin mixture comprising
- (A) 20 to 90% by weight of a polyamide 6 resin, a polyamide 66 resin or mixture thereof and
- (B) 10 to 80% by weight of an aromatic polyamide resin, said aromatic polyamide resin having diamine units comprising 10 to 50 mol % of paraxylylenediamine units and 50 to 90 mol % of methaxylylenediamine units, and aliphatic dicarboxylic acid units;
- (C) 0 to 300 parts by weight of an inorganic filler;
- and
- one or more additives selected from the group consisting of antistatic agent, coloring material, release agent, lubricant, plasticizer, nucleating agent, and stabilizers.
A molded article produced by injection molding, which comprises a polyamide resin composition consisting essentially of:
- 100 parts by weight of a polyamide resin mixture comprising
- (A) 20 to 90% by weight of a polyamide 6 resin, a polyamide 66 resin or mixture thereof and
- (B) 10 to 80% by weight of an aromatic polyamide resin;
- and
- (C) 0 to 300 parts by weight of an inorganic filler,
- said aromatic polyamide resin having diamine units comprising 10 to 50 mol % of paraxylylenediamine units and 50 to 90 mol % of methaxylylenediamine units, and aliphatic dicarboxylic acid units.
Dependencies are inferred from the claim text.