EP0119150A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
High performance rubber-polyester blends
Assignee: Goodyear Tire and Rubber Co
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Filing: 1984-03-06
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Granted: —
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Expires: 2004-03-06
Abstract
Abstract This invention specifically relates to blends of grossly incompatible polymers (polyethylene terephthalate and rubber) which are blended with a dispersion stabilizer (compatibilizing agent) to obtain optimum properties, particularly impact strength. The dispersion stabilizers disclosed herein are alkenyl succinic anhydrides wherein said alkenyl group contains from 8 to 30 carbon atoms; alkyl succinic anhydrides wherein said alkyl group contains from 8 to 30 carbon atoms; and dimers, oligomers, and polymers of the structural formula: wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are selected from the group consisting of alkyl moieties containing from 0 to 30 carbon atoms, alkenyl moieties containing from 0 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and wherein the-
Inventors
- 👤 Wyndham Henry Boon
- 👤 James Neil Henderson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 04:07
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/16; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1535; C08K5/1539; C08L67/00; C08L67/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
199 words
A composition having a balance of properties suitable for molding purposes and having high impact resistance, said composition being characterized in that it is an admixture of (a) from about 10 to about 90 percent by weight polyethylene terephthalate; (b) from about 10 to about 90 weight percent of at least one rubber selected from the group consisting of EPDM rubbers and EPR rubbers; and (c) from about 0.001 to about 2.0 weight percent of at least one member selected from the group consisting of alkyl succinic anhydrides wherein said alkyl group contains from 8 to 30 carbon atoms, alkenyl succinic anhydrides wherein said alkenyl group contains from 8 to 30 carbon atoms, and dimers, oligomers, and polymers of the structural formula: wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are selected from the group consisting of alkyl moieties containing from 0 to 30 carbon atoms, alkenyl moieties containing from 0 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and wherein the- -indicates that the repeat units can be distributed in any order.
Claim 2
Dependent Claim
199 words
A composition having a balance of properties suitable for molding purposes and having high impact resistance, said composition being characterized in that it is an admixture of (a) from about 10 to about 90 percent by weight polyethylene terephthalate; (b) from about 10 to about 90 weight percent of at least one rubber selected from the group consisting of EPDM rubbers and EPR rubbers; and (c) from about 0.001 to about 2.0 weight percent of at least one member selected from the group consisting of alkyl succinic anhydrides wherein said alkyl group contains from 8 to 30 carbon atoms, alkenyl succinic anhydrides wherein said alkenyl group contains from 8 to 30 carbon atoms, and dimers, oligomers, and polymers of the structural formula: wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are selected from the group consisting of alkyl moieties containing from 0 to 30 carbon atoms, alkenyl moieties containing from 0 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and wherein the- -indicates that the repeat units can be distributed in any order.
Claim 3
Dependent Claim
169 words
A composition having a balance of properties suitable for molding purposes and having high impact resistance, said composition being characterized in that it is an admixture of (a) from about 10 to about 90 percent by weight of a polymer with a structural formula selected from the group consisting of: and wherein n is an integer ranging from about 50 to.about 750, wherein R and Z are members selected from the group consisting of alkyl groups containing from 8 to 30 carbon atoms, alkenyl moieties containing from 8 to 30 carbon atoms, and hydrogen, with the proviso that when R is a member selected from the group consisting of alkyl groups and alkenyl groups, then Z is hydrogen, and with the proviso that when Z is a member selected from the group consisting of alkyl groups and alkenyl groups, then R is hydrogen; and (b) from about 10 to about 90 weight percent of at least one rubber selected from the group consisting of EPDM rubbers and EPR rubbers.
Claim 4
Dependent Claim
169 words
A composition having a balance of properties suitable for molding purposes and having high impact resistance, said composition being characterized in that it is an admixture of (a) from about 10 to about 90 percent by weight of a polymer with a structural formula selected from the group consisting of: and wherein n is an integer ranging from about 50 to.about 750, wherein R and Z are members selected from the group consisting of alkyl groups containing from 8 to 30 carbon atoms, alkenyl moieties containing from 8 to 30 carbon atoms, and hydrogen, with the proviso that when R is a member selected from the group consisting of alkyl groups and alkenyl groups, then Z is hydrogen, and with the proviso that when Z is a member selected from the group consisting of alkyl groups and alkenyl groups, then R is hydrogen; and (b) from about 10 to about 90 weight percent of at least one rubber selected from the group consisting of EPDM rubbers and EPR rubbers.
Claim 5
Dependent Claim
195 words
A process for producing an impact resistant molding composition characterized by distributing throughout polyethylene terephthalate from about 10 to 90 weight percent, based on the total weight of the composition, of at least one member selected from the group consisting of EPDM rubbers and EPR rubbers and from about 0.001 to 2 weight percent, based on the total weight of the composition, of at least one member selected from the group consisting of alkyl succinic anhydrides, wherein said alkyl moiety contains from 8 to 30 carbon atoms; alkenyl succinic anhydrides, wherein said alkenyl moiety contains from 8 to 30 carbon atoms; and dimers, oligomers, and polymers of the structural formula: wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are members selected from the group consisting of alkyl groups containing from 8 to 30 carbon atoms, alkenyl groups containing 8 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and wherein- -indicates that the repeat units can be distributed in any order, at a temperature of about 260°C to about 300°C.
Claim 6
Dependent Claim
195 words
A process for producing an impact resistant molding composition characterized by distributing throughout polyethylene terephthalate from about 10 to 90 weight percent, based on the total weight of the composition, of at least one member selected from the group consisting of EPDM rubbers and EPR rubbers and from about 0.001 to 2 weight percent, based on the total weight of the composition, of at least one member selected from the group consisting of alkyl succinic anhydrides, wherein said alkyl moiety contains from 8 to 30 carbon atoms; alkenyl succinic anhydrides, wherein said alkenyl moiety contains from 8 to 30 carbon atoms; and dimers, oligomers, and polymers of the structural formula: wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are members selected from the group consisting of alkyl groups containing from 8 to 30 carbon atoms, alkenyl groups containing 8 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and wherein- -indicates that the repeat units can be distributed in any order, at a temperature of about 260°C to about 300°C.
Claim 7
Dependent Claim
169 words
A composition having a balance of properties suitable for molding purposes and having high impact resistance, said composition being characterized in that it is an admixture of (a) from about 10 to about 90 percent by weight of a polymer which is the reaction product of PET and at least one member selected from the group consisting of dimers, oligomers, and polymers with the structural formula: wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are selected from the group consisting of alkyl moieties containing from 0 to 30 carbon atoms, alkenyl moieties containing from 0 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and wherein the- -indicates that the repeat units can be distributed in any order; and (b) from about 10 to about 90 weight percent of at least one rubber selected from the group consisting of EPDM rubbers and EPR rubbers.
Claim 8
Dependent Claim
169 words
A composition having a balance of properties suitable for molding purposes and having high impact resistance, said composition being characterized in that it is an admixture of (a) from about 10 to about 90 percent by weight of a polymer which is the reaction product of PET and at least one member selected from the group consisting of dimers, oligomers, and polymers with the structural formula: wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are selected from the group consisting of alkyl moieties containing from 0 to 30 carbon atoms, alkenyl moieties containing from 0 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and wherein the- -indicates that the repeat units can be distributed in any order; and (b) from about 10 to about 90 weight percent of at least one rubber selected from the group consisting of EPDM rubbers and EPR rubbers.
Claim 9
Dependent Claim
149 words
A composition as specified in claim 1 characterized in that from about 0.005 to about 1 weight percent of at least one member selected from the group consisting of alkyl succinic anhydrides wherein said alkyl group contains from 8 to 30 carbon atoms, alkenyl succinic anhydrides wherein said alkenyl group contains from 8 to 30 carbon atoms, and dimers, oligomers, and polymers of the structural formula: wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are selected from the group consisting of alkyl moieties containing from 0 to 30 carbon atoms, alkenyl moieties containing from 0 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and wherein the - -indicates that the repeat units can be distributed in any order, is present in said admixture.
Claim 10
Dependent Claim
148 words
A process as specified in claim 3 characterized in that from about 0.005 to about 1 weight percent of at least one member selected from the group consisting of alkyl succinic anhydrides wherein said alkyl group contains from 8 to 30 carbon atoms, alkenyl succinic anhydrides wherein said alkenyl group contains from 8 to 30 carbon atoms, and dimers, oligomers, and polymers of the structural formula: wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are selected from the group consisting of alkyl moieties containing from 0 to 30 carbon atoms, alkenyl moieties containing from 0 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and.wherein the- -indicates that the repeat units can be distributed in any order, is distributed throughout said polyethylene terephthalate.
Claim 11
Dependent Claim
148 words
A composition as specified in claim 5 characterized in that from about 0.1 to about 0.5 weight percent of at least one member selected from the group consisting of alkyl succinic anhydrides wherein said alkyl group contains from 8 to 30 carbon atoms, alkenyl succinic anhydrides wherein said alkenyl group contains from 8 to 30 carbon atoms, and dimers, oligomers, and polymers of the structural formula: wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are selected from the group consisting of alkyl moieties containing from 0 to 30 carbon atoms, alkenyl moieties containing from 0 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and wherein the- indicates that the repeat units can be distributed in any order, is present in said admixture.
Claim 12
Dependent Claim
155 words
A process as specified in claim 6 characterized in that from about .01 to 0.5 weight percent, based on the total weight of the composition, of at least one member selected from the group consisting of alkyl succinic anhydrides, wherein said alkyl moiety contains from 8 to 30 carbon atoms; alkenyl succinic anhydrides, wherein said alkenyl moiety contains from 8 to 30 carbon atoms; and dimers, oligomers, and polymers of the structural formula: wherein x and y are integers, wherein R and Z can be the same or different, wherein R and Z are members selected from the group consisting of alkyl groups containing from 8 to 30 carbon atoms, alkenyl groups containing 8 to 30 carbon atoms, and hydrogen, wherein the total number of carbon atoms in R and Z is between 8 and 30, and wherein indicates that the repeat units can be distributed in any order, is distributed throughout said polyethylene terephthalate.
Claim 13
Dependent Claim
35 words
A composition as-specified in claim 1 characterized in that said admixture contains from about 40 to about 85 weight percent PET and from about 15 to about 60 weight percent of at least one rubber.
Claim 14
Dependent Claim
24 words
A composition as specified in claim 1 characterized in that said dimers, oligomers and polymers have the structural formula: wherein n is about 150.
References Cited (Backward Citations)
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