US5013793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamically cured thermoplastic olefin polymers and process for producing the same
Assignee: Advanced Elastomer Systems LP
•
Filing: 1990-07-26
•
Granted: 1991-05-07
•
Expires: 2010-07-26
Abstract
Abstract A dynamically vulcanized thermoplastic composition is provided which comprises a polymer blend of a thermoplastic olefinic resin, and an elastomeric halogen-containing copolymer of a C 4 to C 7 isomonoolefin and a paraalkylstyrene. A process for preparing the dynamically vulcanized composition is also provided.
Inventors
- 👤 Hsien C. Wang
- 👤 Kenneth W. Powers
- 👤 Robert C. Puydak
- 👤 Narayanaswami R. Dharmarajan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:43
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L23/283; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0853; C08L23/0869; C08L25/00; C08L25/18; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/24; C08K3/26; C08L2205/00; C08L2205/03; C08L23/10; C08L23/12; C08L23/14; C08L23/142; C08L23/16; C08L2312/00; C08L61/00; C08L61/04; C08L61/06; C08L91/00
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
30 words
A thermoplastic composition comprising a dynamically vulcanized polymer blend of a thermoplastic olefinic resin, and an elastomeric halogen-containing copolymer of a C 4 to C 7 isomonoolefin and a paraalkylstyrene.
Claim 2
Dependent Claim
30 words
A thermoplastic composition comprising a dynamically vulcanized polymer blend of a thermoplastic olefinic resin, and an elastomeric halogen-containing copolymer of a C 4 to C 7 isomonoolefin and a paraalkylstyrene.
Claim 3
Dependent Claim
47 words
The thermoplastic composition of claim 1, wherein said thermoplastic olefinic resin is present in an amount ranging from about 10 to 90 weight percent, and said elastomeric halogen-containing copolymer is present in an amount ranging from about 10 to 90 weight percent, based on said polymer blend.
Claim 4
Dependent Claim
46 words
The thermoplastic composition of claim 1, wherein said thermoplastic olefinic resin is present in an amount ranging from about 15 to 80 weight percent, said elastomeric halogen-containing copolymer is present in an amount ranging from about 20 to 80 weight percent, based on said polymer blend.
Claim 5
Dependent Claim
24 words
The thermoplastic composition of claim 1, wherein said elastomeric halogen-containing copolymer is present in said composition as particles dispersed in said thermoplastic olefinic resin.
Claim 6
Dependent Claim
16 words
The thermoplastic composition of claim 1, wherein said elastomeric halogen-containing copolymer is at least partially vulcanized.
Claim 7
Dependent Claim
14 words
The thermoplastic composition of claim 1, wherein said elastomeric halogen-containing copolymer is fully vulcanized.
Claim 8
Dependent Claim
46 words
The thermoplastic composition of claim 1, wherein said thermoplastic olefinic resin is selected from the group consisting of high density polyethylene, polypropylene, low density polyethylene, linear low density polyethylene, very low density polyethylene, ethylene copolymer resins, plastomeric copolymers of ethylene and 1-alkene, polybutylene, and mixtures thereof.
Claim 9
Dependent Claim
23 words
The thermoplastic composition of claim 1, wherein said thermoplastic olefinic resin is selected from the group consisting of polyethylene, polypropylene and mixtures thereof.
Claim 10
Dependent Claim
60 words
The thermoplastic composition of claim 1, wherein said thermoplastic olefinic resin is an ethylene copolymer resin selected from the group consisting of a copolymer of ethylene and vinyl acetate, a copolymer of ethylene and an alpha, beta monoethylenically unsaturated monocarboxylic acid, a copolymer of ethylene and an alkyl ester of an alpha, beta monoethylenically unsaturated carboxylic acid and mixtures thereof.
Claim 11
Dependent Claim
19 words
The thermoplastic composition of claim 9, wherein said ethylene copolymer resin is a copolymer of ethylene and vinyl acetate.
Claim 12
Dependent Claim
35 words
The thermoplastic composition of claim 9, wherein said ethylene copolymer resin is a copolymer of ethylene and an alkyl acrylate selected from the group consisting of methyl acrylate, ethyl acrylate, butyl acrylate, and mixtures thereof.
Claim 13
Dependent Claim
23 words
The thermoplastic composition of claim 1, wherein said elastomeric halogen-containing copolymer comprises from about 0.5 to about 25 weight percent of said para-alkylstyrene.
Claim 14
Dependent Claim
23 words
The thermoplastic composition of claim 1, wherein said elastomeric halogen-containing copolymer comprises from above zero to about 10 weight percent of said halogen.
Claim 15
Dependent Claim
21 words
The thermoplastic composition of claim 1, wherein said halogen is selected from the group consisting of chlorine, bromine, and mixtures thereof.
Claim 16
Dependent Claim
21 words
The thermoplastic composition of claim 1, wherein said halogen comprises bromine, and wherein said bromine is chemically bound to said para-alkylstyrene.
Claim 17
Dependent Claim
16 words
The thermoplastic composition of claim 1, wherein said isomonoolefin is isobutylene and said paraalkylstyrene is para-methylstyrene.
Claim 18
Dependent Claim
11 words
The thermoplastic composition of claim 1, additionally comprising an uncured rubber.
Claim 19
Dependent Claim
25 words
The thermoplastic composition of claim 1, additionally comprising a component selected from the group consisting of a filler, a rubber compounding additive, and mixtures thereof.
Claim 20
Dependent Claim
23 words
The thermoplastic composition of claim 1, additionally comprising an additive selected from the group consisting of rubber processing oils, plasticizers and mixtures thereof.
Claim 21
Dependent Claim
70 words
A process for preparing a vulcanized thermoplastic composition, which comprises the steps of: (a) blending a thermoplastic olefinic resin, an unvulcanized elastomeric halogen-containing copolymer of a C 4 to C 7 isomonoolefin and a para-alkylstyrene, and a vulcanization agent capable of vulcanizing said elastomeric halogen-containing copolymer; and (b) masticating and shearing the blend resulting from step (a) at vulcanization conditions for a time sufficient to produce a vulcanized thermoplastic composition.
Claim 22
Dependent Claim
70 words
A process for preparing a vulcanized thermoplastic composition, which comprises the steps of: (a) blending a thermoplastic olefinic resin, an unvulcanized elastomeric halogen-containing copolymer of a C 4 to C 7 isomonoolefin and a para-alkylstyrene, and a vulcanization agent capable of vulcanizing said elastomeric halogen-containing copolymer; and (b) masticating and shearing the blend resulting from step (a) at vulcanization conditions for a time sufficient to produce a vulcanized thermoplastic composition.
Claim 23
Dependent Claim
28 words
The process of claim 20, wherein an additional rubber which is not vulcanizable by said vulcanizing agent is added before said step (b) or after said step (b).
Claim 24
Dependent Claim
31 words
The process of claim 20, wherein an additional rubber which is curable by said vulcanizing agent is added to said vulcanized thermoplastic composition after said vulcanizing agent has been fully consumed.
Claim 25
Dependent Claim
25 words
The process of claim 20, wherein said vulcanized thermoplastic composition comprises crosslinked discrete particles of said elastomeric halogen-containing copolymer dispersed in said thermoplastic olefinic resin.
Claim 26
Dependent Claim
27 words
The process of claim 20, wherein said vulcanization conditions include a temperature ranging from about the melting point of said thermoplastic olefinic resin to about 250° C.
Claim 27
Dependent Claim
40 words
The process of claim 20, wherein said thermoplastic olefinic resin is selected from the group consisting of high density polyethylene, low density polypropylene, very low density polyethylene, ethylene copolymer resins, plastomeric copolymers of ethylene and 1-alkene, polybutylene, and mixtures thereof.
Claim 28
Dependent Claim
59 words
The process of claim 20, wherein said thermoplastic olefinic resin is an ethylene copolymer resin selected from the group consisting of a copolymer of ethylene and vinyl acetate, a copolymer of ethylene and an alpha, beta monoethylenically unsaturated monocarboxylic acid, a copolymer of ethylene and an alkyl ester of an alpha, beta monoethylenically unsaturated carboxylic acid and mixtures thereof.
Claim 29
Dependent Claim
18 words
The process of claim 26, wherein said ethylene copolymer resin is a copolymer of ethylene and vinyl acetate.
Claim 30
Dependent Claim
34 words
The process of claim 26, wherein said ethylene copolymer resin is a copolymer of ethylene and an alkyl acrylate selected from the group consisting of methyl acrylate, ethyl acrylate, butyl acrylate, and mixtures thereof.
Claim 31
Dependent Claim
22 words
The process of claim 20, wherein said elastomeric halogen-containing copolymer comprises from about 0.5 to about 25 weight percent of said paraalkylstyrene.
Claim 32
Dependent Claim
22 words
The process of claim 20, wherein said elastomeric halogen-containing copolymer comprises from above zero to about 10 weight percent of said halogen.
Claim 33
Dependent Claim
20 words
The process of claim 20, wherein said halogen is selected from the group consisting of chlorine, bromine, and mixtures thereof.
Claim 34
Dependent Claim
20 words
The process of claim 20, wherein said halogen comprises bromine and wherein said bromine is chemically bound to said para-alkylstyrene.
Claim 35
Dependent Claim
15 words
The process of claim 20, wherein said isomonoolefin is isobutylene and said para-alkylstyrene is para-methylstyrene.
Claim 36
Dependent Claim
52 words
The process of claim 20, wherein said vulcanized thermoplastic composition comprises from about 10 to about 90 weight percent of said thermoplastic olefinic resin, and from about 10 to about 90 weight percent of said elastomeric halogen-containing copolymer, based on the weight of said thermoplastic olefinic resin plus said elastomeric halogen-containing copolymer.
References Cited (Backward Citations)
US3037954A
Cited
US3326833A
Cited
US4130534A
Cited
US4350794A
Cited
US4607074A
Cited
US4639487A
Cited
US4593062A
Cited
EP0344021A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-06 | 1994-11-05 | 1995-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-06 | 1998-11-05 | 1999-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-06 | 2002-11-05 | 2003-05-07 | $7700.00 | Window Closed / Lapsed |