EP0216524A2
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EP
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Rubber dispersed copolymer resin
Assignee: Mitsui Toatsu Chemicals Inc
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Filing: 1986-08-27
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Granted: —
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Expires: 2006-08-27
Abstract
Abstract A rubber dispersed copolymer resin has excellent heat resistance, impact strength and moldability when composed of in a dispersed phase formed of a rubbery polymer and copolymerized styrene-type, acrylonitrile-type and modeide-type monomers, said rubbery polymer specifically occluding the copolymer of monomers, being grafted with the copolymer and/or forming a multicomponent gel together with copolymers, and (2) a continuous phase formed at least of a specifically controlled copolymer of the styrene-type, acrylonitrile-type and mateimide-type monomers. The resin is useful as a molding material for electric appliances, electronic equipment and car components.
Inventors
- 👤 Mune 2-26 Mitsui Toatsu Apaato Iwamoto
- 👤 Kuzuo Sugazaki
- 👤 Toshihiko 3-29 Mitsui Toatsu Apaato Ando
- 👤 Norifumi Ito
- 👤 Tetsuyuki 1-32 Mitsui Toatsu Apaato Matsubara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 17:44
CPC Classifications
H; H03; H03K; H03K3/00; C; C08; C08L; C08L35/00; C08L35/06; C08F; C08F279/00; C08F279/02; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/12; C08L51/00; C08L51/04; C08L55/00; C08L55/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
65 words
A rubber dispersed copolymer resin comprising a dispersed phase formed of a rubbery polymer and copolymerized styrene-type, acrylonitrile-type and maleimide-type monomers, said rubbery polymer occluding the copolymer of said styrene-type, acrylonitrile-type and maleimide-type monomers and/or being grafted with the copolymer, and/or forming a multicomponent gel with copolymers; and a continuous phase formed of a copolymer of additional portions of said styrene-type, acrylonitrile-type and maleimide-type monomers.
Claim 2
Dependent Claim
65 words
A rubber dispersed copolymer resin comprising a dispersed phase formed of a rubbery polymer and copolymerized styrene-type, acrylonitrile-type and maleimide-type monomers, said rubbery polymer occluding the copolymer of said styrene-type, acrylonitrile-type and maleimide-type monomers and/or being grafted with the copolymer, and/or forming a multicomponent gel with copolymers; and a continuous phase formed of a copolymer of additional portions of said styrene-type, acrylonitrile-type and maleimide-type monomers.
Claim 3
Dependent Claim
34 words
The rubber dispersed copolymer resin according to claim 1, wherein the reduced viscosity of a 0.5 - wt.% solution of the continuous phase forming copolymer in dimethylformamide is 0.5 - 1.0 dl/g at 30°C.
Claim 4
Dependent Claim
113 words
The rubber dispersed copolymer resin according to claim 1 or claim 2, wherein: (a) the rubbery polymer in the dispersed phase occludes the copolymer of the styrene-type, acrylonitrile-type and maleimide-type monomers and/or is grafted with the copolymer, the proportion of the occluded and/or grafted copolymer (GCP) is 50 - 100 parts by weight based on 100 parts by weight of the rubbery polymer; (b) the proportion (X) of the copolymerized maleimide-type monomer in the GCP-is 1 - 25 wt.%; (c) the proportion (Y) of the additional portion of the copolymerized maleimide-type monomer in the copolymer of the continuous phase is 1 - 25 wt.%; and (d) X and Y satisfy the following inequality
Claim 5
Dependent Claim
57 words
The rubber dispersed copolymer resin .according to claim 3, wherein supposing the total amount of the rubbery polymer, GCP and the copolymer in the continuous phase be 100 wt.%, the rubbery polymer is contained in an amount of 3 - 20 wt.% and the total amount of GCP and the continuous phase is 97 - 80 wt.%.
Claim 6
Dependent Claim
72 words
The rubber dispersed copolymer resin according to claim 3, wherein supposing the total amount of GCP and the copolymer in the continuous phase be 100 wt.%, GCP and the copolymer in the continuous phase are composed in total of 30 - 80 wt.% of the styrene-type monomer, 10 - 50 wt.% of acrylonitrile-type monomer, 1 - 25 wt.% of maleimide-type monomer and 0 - 20 wt.% of one or more other monomers.
Claim 7
Dependent Claim
26 words
The rubber dispersed copolymer resin according to claim 3, 4 or 5, wherein the crosslinking degree index of the dispersed phase is 4 - 11 times.
Claim 8
Dependent Claim
21 words
The rubber dispersed copolymer resin according to claim 3, 4, 5 or 6, wherein X and Y satisfy the following inequality:
Claim 9
Dependent Claim
29 words
The rubber dispersed copolymer resin according to any of claims 3 to 7, wherein the maleimide-type monomer copolymerized in each of GCP and the continuous phase are N-phenylmaleimide-type monomer.
Claim 10
Dependent Claim
119 words
A rubber dispersed copolymer resin comprising: (a) a dispersed phase formed of a multicomponent gel, which contains the following three components: (i) a rubbery polymer; (ii) a copolymer of a styrene-type monomer and an acrylonitrile-type monomer; (iii) a copolymer of a styrene-type monomer, an acrylonitrile-type monomer and a maleimide-type monomer, when the total amount of the multicomponent gel is supposed to be 100 parts by weight, the rubbery polymer (i) is contained in an amount of 30 - 70 parts by weight and the total amount of the latter two copolymers (ii) and (iii) is 70 - 30 parts by weight; and (b) a continuous phase formed at least of a copolymer of a maleimide-type, styrene-type and acrylonitrile-type monomers.
Claim 11
Dependent Claim
119 words
A rubber dispersed copolymer resin comprising: (a) a dispersed phase formed of a multicomponent gel, which contains the following three components: (i) a rubbery polymer; (ii) a copolymer of a styrene-type monomer and an acrylonitrile-type monomer; (iii) a copolymer of a styrene-type monomer, an acrylonitrile-type monomer and a maleimide-type monomer, when the total amount of the multicomponent gel is supposed to be 100 parts by weight, the rubbery polymer (i) is contained in an amount of 30 - 70 parts by weight and the total amount of the latter two copolymers (ii) and (iii) is 70 - 30 parts by weight; and (b) a continuous phase formed at least of a copolymer of a maleimide-type, styrene-type and acrylonitrile-type monomers.
Claim 12
Dependent Claim
44 words
The rubber dispersed copolymer resin according to claim 9, wherein the total amount of multicomponent gel particles, each of which contains at least one cell having a diameter of at least 0.05 pm, accounts for at least 50 wt.% of the whole multicomponent gel.
Claim 13
Dependent Claim
24 words
The rubber dispersed copolymer resin according to claim 9 or claim 10, wherein the styrene-type monomer is a mixture of styrene and d -methylstyrene.
Claim 14
Dependent Claim
20 words
The rubber dispersed copolymer resin according to claim 11, wherein the ratio of styrene to α-methylstyrene is 100/10 - 100/70.
Claim 15
Dependent Claim
27 words
The rubber dispersed copolymer resin according to any of claims 9 to 12, wherein the crosslinking degree index of the multicomponent gel is 4 - 11 times.
Claim 16
Dependent Claim
19 words
A moulded article, e.g. an injection moulding produced from the resin claimed in any of claims 1 to 13.
References Cited (Backward Citations)
No citation records indexed.
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