摘要:
Disclosed are thermoplastic resins comprising block copolymers composed of polyester segments and vinyl polymer segments and having excellent thermal resistance and moldability, as well as several processes for preparing same. Among these thermoplastic resins, block copolymers formed of amorphous aromatic polyester segments and polystyrene resin segments are also useful as optical resins.
摘要:
A polyarylene sulfide resin composition comprising 60-99 parts by weight of a polyarylenesulfide resin (A), 40-1 parts by weight of a polyorganosiloxane graft copolymer (B) prepared by grafting a vinyl monomer on a polyorganosiloxane rubber having a degree of swelling in a range of 3-50 measured using toluene as a solvent and an average particle size in a range of 0.15 .mu.m-0.5 .mu.m and being copolymerized with a graft-linking agent, where the total amount of the (A) component and the (B) component is 100 parts by weight, and 0-150 parts by weight of a reinforcing filler (C). A polyarylene sulfide resin composition according to the present invention is excellent in impact resistance, heat resistance, mechanical strength and moldability and useful for an engineering plastic.
摘要:
Disclosed is a thermoplastic polyester resin composition, which comprises (A) 99-60 parts by weight of a thermoplastic polyester resin, (B) 1-40 parts by weight of a polyorganosiloxane rubber, (C) 0.01-10 parts by weight, per 100 parts by weight of the sum of the components (A) and (B), of an organic silane compound having at least one functional group selected from the group consisting of an epoxy group, and isocyanate group and an amino group, and (D) 0-300 parts by weight, per 100 parts by weight of the sum of the components (A) and (B), of a reinforcing filler. This composition results in a shaped article having an improved impact resistance while retaining good heat stability and weatherability inherently possessed by the thermoplastic polyester.
摘要:
A polyarylene sulfide resin composition obtainable by mixing(A) 99 to 60 parts by weight of a polyarylene sulfide resin,(B) 1 to 40 parts by weight of a polyorganosiloxane rubber,(C) 0.01 to 10 parts by weight, based on 100 parts by weight of the total weight of the components (A) and (B), of an organosilane compound having an isocyanate group, and(D) 0 to 300 wt. %, based on the total weight of the components (A), (B) and (C), of a filler, and then reacting these components. The polyarylene sulfide resin composition of the present invention has excellent impact resistance and is used in electrical and electronic parts such as surface mounting connectors requiring heat resistance and toughness, as well as in mechanical parts, etc.
摘要:
A polyarylene sulfide resin composition comprising a composition obtainable by the reaction of a polymer composition comprising 100 parts by weight of a composition of 10 to 90 wt. % of a polyarylene sulfide resin and 90 to 10 wt. % of a thermoplastic polyester, 0.01 to 10 parts by weight of a polyfunctional oxazoline compound and 0 to 300 parts by weight, based on 100 parts by weight of the composition consisting of the polyarylene sulfide resin and thermoplastic polyester, of a filler. The polyarylene sulfide resin composition of the present invention, because of the polyarylene sulfide resin and the thermoplastic polyester having been made compatible with each other, is excellent in the adhesive property of paint film (paintability) and the appearance of the surface without a large reduction in the excellent heat resistance and mechanical properties inherent to the polyarylene sulfide resin.
摘要:
A polyarylene sulfide resin composition comprising a composition obtainable by a reaction of a polymer composition comprising(A) 100 parts by weight of a polyarylene sulfide resin,(B) 0.1 to 40 parts by weight of a monomer having one or more ethylenic unsaturated bonds and(C) 0 to 40 parts by weight of an unsaturated polyester. In the polyarylene sulfide resin composition of the present invention, a polymer produced by polymerization of the monomer or the monomer and unsaturated polyester, as compared with a resin composition wherein said polymer is simply blended, is in a state wherein it is uniformly mixed with the polyarylene sulfide resin and if necessary a filler. In other words, said polymer is uniformly dispersed in and mixed with the polyarylene sulfide resin to such a degree that the composition shows no phase separation even if it is passed through molding processes such as extrusion molding, injection molding, etc. carried out under normal conditions. Futher, the amount of said polymer added to the polyarylene sulfide resin is so proper that an excellent-performance resin composition to which an adhesive property of paint film (paintability) has been given, is obtained without a large reduction in the excellent properties of the polyarylene sulfide resin.
摘要:
An optical article such as optical disk and optical lens, made of an amorphous thermoplastic polyester resin comprised of recurring units, each recurring unit having an aromatic ring in the main chain thereof and an aromatic ring in the side chain thereof. The optical article have a good heat resistance, resistance to absorption of moisture and optical characteristics.
摘要:
A thermoplastic resin composition comprising: (A) at least one resin selected from the group consisting of a polyester resin and a polycarbonate resin, and (B) an aromatic polyester-polyorganosiloxane block copolymer, a weight ratio of (A) to (B) (=A/B) being 10/90 to 90/10. With the addition of the copolymer (B), impact strength of the composition can be improved without impairing the properties of the resin (A).
摘要翻译:一种热塑性树脂组合物,其包含:(A)至少一种选自聚酯树脂和聚碳酸酯树脂的树脂,(B)芳族聚酯 - 聚有机硅氧烷嵌段共聚物,(A)与(B)的重量比, (= A / B)为10/90至90/10。 通过添加共聚物(B),可以提高组合物的冲击强度,而不损害树脂(A)的性能。
摘要:
An aromatic polyester-polyorganosiloxane block copolymer comprising a polyester segment consisting essentially of:(a) an aromatic polyester of an aromatic dicarboxylic acid, or mixtures thereof, and a dihydric phenol, a lower aliphatic diol, an alicyclic diol, or mixtures thereof,(b) an aromatic polyester of an aromatic hydroxycarboxylic acid or mixtures thereof, or(c) a copolymer of (a) and (b),and a polyorganosiloxane segment having a recurring unit represented by the formula: ##STR1## in which R.sub.1 represents a lower alkylene group or a lower alkylene ether group; R.sub.2 and R.sub.3 independently represent a methyl group or a phenyl group; and n represents an integer not smaller than 10, in which bonding between the polyester segment and the polyorganosiloxane segment is an ester linkage formed by a condensation reaction between the terminal carboxyl group of the polyester segment and the terminal hydroxyl group of the polyorganosiloxane segment.
摘要:
A polyarylene sulfide resin composition obtainable by mixing and reacting(A) 99 to 60 parts by weight of a polyarylene sulfide resin,(B) 1 to 40 parts by weight of a polyorganosiloxane rubber, in which 0.1 to 20 wt. % of a siloxane compound represented by the following formula (I):HS(CH.sub.2).sub.p --SiR.sub.n (OR').sub.3-n (I) wherein R represents a methyl, ethyl, propyl or phenyl group, R' represents a methyl or ethyl group, n represents an integer of 0, 1 or 2, and p represents an integer of 1 to 6, are copolymerized, having an average particle size of 0.1 to 0.5 .mu.m and a degree of swelling of 3 to 50 measured by immersing in toluene, or a polyorganosiloxane graft copolymer prepared by graft-polymerizing a monomer comprising at least one of an unsaturated carboxylic acid and its anhydride to a polyorganosiloxane rubber having an average particle size of 0.1 to 0.5 .mu.m and a degree of swelling of 3 to 50 measured by immersing in toluene,(C) 0.01 to 10 parts by weight, based on 100 parts by weight of the total weight of the components (A) and (B), of at least one polyfunctional compound selected from the group consisting of polyfunctional isocyanate compounds, polyfunctional oxazoline compounds and polyfunctional epoxy compounds, and(D) 0 to 300 wt. %, based on the total weight of the components (A), (B) and (C), of a filler. The composition having excellent impact resistance without a large reduction in the properties inherent to a polyarylene sulfide resin.