Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
157 words
A process for making a polyphenylene ether composition which comprises melt-blending 100 parts by weight of a mixture comprising a polyphenylene ether (A) obtained by oxidation-polymerization of at least one phenol of the formula: wherein R₁, R₂, R₃, R₄ and R₅, which may be the same or different, each represent hydrogen, halogen or an optionally substituted hydrocarbon group with the proviso that at least one is hydrogen, and having a reduced viscosity η sp/c of 0.40 - 0.58 deciliter/gram and 0.01 - 5.0 parts by weight of at least one compound (B) which contains in its molecule both (a) at least one carbon-carbon double bond or carbon-carbon triple bond and (b) at least one carboxyl group, acid anhydride group, acid amide group, imide group, carboxylic acid ester group, epoxy group, amino group or hydroxyl group, in the presence of from 0.01% to less than 0.1% by weight of a radical initiator based on the polyphenylene ether (A).
Claim 2
Dependent Claim
157 words
A process for making a polyphenylene ether composition which comprises melt-blending 100 parts by weight of a mixture comprising a polyphenylene ether (A) obtained by oxidation-polymerization of at least one phenol of the formula: wherein R₁, R₂, R₃, R₄ and R₅, which may be the same or different, each represent hydrogen, halogen or an optionally substituted hydrocarbon group with the proviso that at least one is hydrogen, and having a reduced viscosity η sp/c of 0.40 - 0.58 deciliter/gram and 0.01 - 5.0 parts by weight of at least one compound (B) which contains in its molecule both (a) at least one carbon-carbon double bond or carbon-carbon triple bond and (b) at least one carboxyl group, acid anhydride group, acid amide group, imide group, carboxylic acid ester group, epoxy group, amino group or hydroxyl group, in the presence of from 0.01% to less than 0.1% by weight of a radical initiator based on the polyphenylene ether (A).
Claim 3
Dependent Claim
28 words
A process according to claim 1 wherein there is melt-blended a mixture which also contains 1 to 40 parts by weight of at least one rubber-like material (C).
Claim 4
Dependent Claim
31 words
A process according to claim 2 wherein said rubber-like material is at least one of saturated olefin rubber, styrene-grafted copolymer rubber, styrenic block copolymer rubber and hydrogenated styrenic block copolymer rubber.
Claim 5
Dependent Claim
32 words
A process according to claim 3 wherein the saturated olefin rubber is ethylene-propylene copolymer rubber or ethylene-propylene-non-conjugated diene terpolymer rubber with which 0.1 - 2.0% by weight of maleic anhydride is graft-polymerized.
Claim 6
Dependent Claim
53 words
A process for making a thermoplastic resin composition which comprises melt blending at a temperature of 240 to 350°C a mixture of 5 to 95 parts by weight of a polyamide and 95 to 5 parts by weight of a polyphenylene ether composition prepared in accordance with any one of the preceding claims.
Claim 7
Dependent Claim
21 words
A process according to claim 5 which comprises the additional step of shaping the thermoplastic composition to form a shaped article.