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US4207404A
Expired / Lapsed
US
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Compositions of chlorinated polyethylene rubber and nylon
Assignee: Advanced Elastomer Systems LP
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Filing: 1978-12-06
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Granted: 1980-06-10
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Expires: 1998-12-06
Abstract
Abstract Thermoplastic compositions are described comprising blends of chlorinated polyethylene rubber and nylon. Cured compositions in which the rubber is cross-linked are also described. The cured compositions are either thermoplastic or thermosets depending upon the curing process used in their preparation.
Inventors
- 👤 Aubert Y. Coran
- 👤 Raman Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:16
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L23/286; C08L77/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
52 words
A composition comprising a blend of about 1-99 parts by weight of nylon having a molecular weight of at least 10,000 and about 99-1 parts by weight of chlorinated polyethylene (CPE) rubber having a chlorine content of about 20-55 weight percent, per 100 total parts by weight of nylon and CPE rubber.
Claim 2
Dependent Claim
52 words
A composition comprising a blend of about 1-99 parts by weight of nylon having a molecular weight of at least 10,000 and about 99-1 parts by weight of chlorinated polyethylene (CPE) rubber having a chlorine content of about 20-55 weight percent, per 100 total parts by weight of nylon and CPE rubber.
Claim 3
Dependent Claim
36 words
The composition of claim 1 in which the blend comprises 10-90 parts by weight of nylon and 90-10 parts by weight of chlorinated polyethylene rubber per 100 total parts by weight of nylon and CPE rubber.
Claim 4
Dependent Claim
16 words
The composition of claim 2 in which the nylon has a melting point between 120°-230° C.
Claim 5
Dependent Claim
29 words
The composition of claim 3 in which the blend comprises 65 parts or more by weight CPE rubber per 100 total parts by weight of nylon and CPE rubber.
Claim 6
Dependent Claim
24 words
The composition of claim 2 in which the blend comprises up to 30 weight percent of a graft polymer of nylon and CPE rubber.
Claim 7
Dependent Claim
26 words
The composition of claim 5 in which the blend comprises from about 2 to 20 weight percent of a graft polymer of nylon and CPE rubber.
Claim 8
Dependent Claim
9 words
The composition of claim 5 prepared by melt mixing.
Claim 9
Dependent Claim
12 words
The composition of claim 1 in which the CPE rubber is cross-linked.
Claim 10
Dependent Claim
29 words
The composition of claim 2 in which the CPE rubber is cross-linked to the extent that the rubber is at least 60 weight percent or more insoluble in toluene.
Claim 11
Dependent Claim
9 words
The composition of claim 9 which is a thermoset.
Claim 12
Dependent Claim
8 words
The composition of claim 9 which is thermoplastic.
Claim 13
Dependent Claim
27 words
The composition of claim 11 in which the CPE rubber is in the form of dispersed particles of a size of 50 microns number average or less.
Claim 14
Dependent Claim
38 words
The composition of claim 12 in which the CPE rubber is cross-linked to the extent that it is at least 80 weight percent or more insoluble in toluene and the particle size is below 15 micron number average.
Claim 15
Dependent Claim
22 words
The composition of claim 6 in which the nylon is selected from the group consisting of Nylon-6, Nylon-6,9, Nylon-6,6-6 or blends thereof.
Claim 16
Dependent Claim
11 words
The composition of claim 14 in which the nylon is Nylon-6.
Claim 17
Dependent Claim
105 words
An elastoplastic composition comprising a blend of about 20 to 40 parts by weight nylon having a molecular weight of at least 10,000 and about 80 to 60 parts by weight CPE rubber having a chlorine content of about 20-55 weight percent, per 100 total parts by weight nylon and CPE rubber in which the CPE rubber is cross-linked to the extent that no more than forty weight percent of the CPE rubber is extractable in toluene and is in the form of dispersed particles of a size of 50 microns number average or below, which composition is processable as a thermoplastic and is elastomeric.
Claim 18
Dependent Claim
105 words
An elastoplastic composition comprising a blend of about 20 to 40 parts by weight nylon having a molecular weight of at least 10,000 and about 80 to 60 parts by weight CPE rubber having a chlorine content of about 20-55 weight percent, per 100 total parts by weight nylon and CPE rubber in which the CPE rubber is cross-linked to the extent that no more than forty weight percent of the CPE rubber is extractable in toluene and is in the form of dispersed particles of a size of 50 microns number average or below, which composition is processable as a thermoplastic and is elastomeric.
Claim 19
Dependent Claim
48 words
The composition of claim 16 in which the CPE rubber is cross-linked to the extent that no more than 20 weight percent of the CPE rubber is extractable in toluene and is in the form of dispersed particles of a size of 15 microns number average or below.
Claim 20
Dependent Claim
22 words
The composition of claim 17 in which the CPE rubber is chlorinated polyethylene having a chlorine content of about 25-50 weight percent.
Claim 21
Dependent Claim
16 words
The composition of claim 18 in which the nylon has a melting point between 120°-230° C.
Claim 22
Dependent Claim
22 words
The composition of claim 19 in which the nylon is selected from the group consisting of Nylon-6, Nylon-6,9, Nylon-6,6-6 or blends thereof.
Claim 23
Dependent Claim
11 words
The composition of claim 20 in which the nylon is Nylon-6.
Claim 24
Dependent Claim
9 words
The composition of claim 17 prepared by dynamic vulcanization.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-06-10 | 1983-12-10 | 1984-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-10 | 1987-12-10 | 1988-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-10 | 1991-12-10 | 1992-06-10 | $7700.00 | Window Closed / Lapsed |