US4501711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and composition for producing open-cell cross linked polyolefin film
Assignee: NUC Corp
•
Filing: 1984-05-15
•
Granted: 1985-02-26
•
Expires: 2004-05-15
Abstract
Abstract Process and composition for single step production of foam by utilizing a blowing agent, organic peroxide cross linking agent and a silicone block copolymer.
Inventors
- 👤 Akitaka Senuma
- 👤 Yoshihiko Shimizu
- 👤 Kiroku Tsukada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:33
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C08K; C08K5/00; C08K5/04; C08K5/14; C08J2323/00; C08J2323/02; C08J2483/00; Y; Y10; Y10S; Y10S264/00; Y10S264/05; Y10S264/13; Y10S264/18
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
55 words
A composition suitable for open-cell polyolefin foam which consists essentially of 100 parts by weight of olefin resin, 1 to 20 parts by weight of blowing agent, 0.3 to 10 parts by weight of organic peroxide crosslinking agent and 0.1 to 5 parts by weight of a silicone block copolymer of the formula: ##STR3## wherein
Claim 2
Dependent Claim
55 words
A composition suitable for open-cell polyolefin foam which consists essentially of 100 parts by weight of olefin resin, 1 to 20 parts by weight of blowing agent, 0.3 to 10 parts by weight of organic peroxide crosslinking agent and 0.1 to 5 parts by weight of a silicone block copolymer of the formula: ##STR3## wherein
Claim 3
Dependent Claim
6 words
R is a monofunctional hydrocarbon group;
Claim 4
Dependent Claim
6 words
R is a monofunctional hydrocarbon group;
Claim 5
Dependent Claim
11 words
X is -(O) p -(C n H 2n O) t -R'
Claim 6
Dependent Claim
11 words
X is -(O) p -(C n H 2n O) t -R'
Claim 7
Dependent Claim
9 words
R' is H, alkyl, allyl, aralkyl, or carbamyl group
Claim 8
Dependent Claim
9 words
R' is H, alkyl, allyl, aralkyl, or carbamyl group
Claim 9
Dependent Claim
5 words
p is 0 or 1
Claim 10
Dependent Claim
5 words
p is 0 or 1
Claim 11
Dependent Claim
9 words
Y is (C n H 2n O) t -R'
Claim 12
Dependent Claim
9 words
Y is (C n H 2n O) t -R'
Claim 13
Dependent Claim
5 words
m is 0 to 300
Claim 14
Dependent Claim
5 words
m is 0 to 300
Claim 15
Dependent Claim
5 words
n is 2 to 10
Claim 16
Dependent Claim
5 words
n is 2 to 10
Claim 17
Dependent Claim
5 words
s is 1 to 30
Claim 18
Dependent Claim
5 words
s is 1 to 30
Claim 19
Dependent Claim
5 words
q is 1 to 300
Claim 20
Dependent Claim
5 words
q is 1 to 300
Claim 21
Dependent Claim
70 words
t is 1 to 100 and wherein: (C n H 2n O) is an oxyalkylene radical or mixtures of such radicals. Said organic peroxide having a 10 minute half-value temperature (T p ) of 100° C. to 170° C. and said blowing agent having a decomposition temperature (T f ) of 90° C. to 160° C., T p and T f satisfying the following equation: -1° C.≦T.sub.p -T.sub.f ≦50° C.
Claim 22
Dependent Claim
70 words
t is 1 to 100 and wherein: (C n H 2n O) is an oxyalkylene radical or mixtures of such radicals. Said organic peroxide having a 10 minute half-value temperature (T p ) of 100° C. to 170° C. and said blowing agent having a decomposition temperature (T f ) of 90° C. to 160° C., T p and T f satisfying the following equation: -1° C.≦T.sub.p -T.sub.f ≦50° C.
Claim 23
Dependent Claim
60 words
A process for producing open-cell crosslinked polyolefin foam which consists essentially of forming a composition comprising 100 parts by weight of olefin resin, 1 to 20 parts by weight of blowing agent, 0.3 to 10 parts by weight of organic peroxide crosslinking agent and 0.1 to 5 parts by weight of a silicone block copolymer of the formula: ##STR4## wherein
Claim 24
Dependent Claim
60 words
A process for producing open-cell crosslinked polyolefin foam which consists essentially of forming a composition comprising 100 parts by weight of olefin resin, 1 to 20 parts by weight of blowing agent, 0.3 to 10 parts by weight of organic peroxide crosslinking agent and 0.1 to 5 parts by weight of a silicone block copolymer of the formula: ##STR4## wherein
Claim 25
Dependent Claim
6 words
R is a monofunctional hydrocarbon group;
Claim 26
Dependent Claim
6 words
R is a monofunctional hydrocarbon group;
Claim 27
Dependent Claim
11 words
X is -(O) p -(C n H 2n O) t -R'
Claim 28
Dependent Claim
11 words
X is -(O) p -(C n H 2n O) t -R'
Claim 29
Dependent Claim
9 words
R' is H, alkyl, allyl, aralkyl, or carbamyl group
Claim 30
Dependent Claim
9 words
R' is H, alkyl, allyl, aralkyl, or carbamyl group
Claim 31
Dependent Claim
5 words
p is 0 or 1
Claim 32
Dependent Claim
5 words
p is 0 or 1
Claim 33
Dependent Claim
9 words
Y is (C n H 2n O) t -R'
Claim 34
Dependent Claim
9 words
Y is (C n H 2n O) t -R'
Claim 35
Dependent Claim
5 words
m is 0 to 300
Claim 36
Dependent Claim
5 words
m is 0 to 300
Claim 37
Dependent Claim
5 words
n is 2 to 10
Claim 38
Dependent Claim
5 words
n is 2 to 10
Claim 39
Dependent Claim
5 words
s is 1 to 30
Claim 40
Dependent Claim
5 words
s is 1 to 30
Claim 41
Dependent Claim
5 words
q is 1 to 300
Claim 42
Dependent Claim
5 words
q is 1 to 300
Claim 43
Dependent Claim
87 words
t is 1 to 300 and wherein: (C n H 2n O) is an oxyalkylene radical or mixtures of such radicals. Said organic peroxide having 10 minute half-value temperature (T p ) of 100° C. to 170° C. and said blowing agent having a decomposition temperature (T f ) of 90° C. to 160° C., T p and T f satisfying the following equation: -1° C.≦T.sub.p -T.sub.f ≦50° C. molding said composition into pellets, powder, film or sheets, and subsequently heating said moldings in a single step.
Claim 44
Dependent Claim
87 words
t is 1 to 300 and wherein: (C n H 2n O) is an oxyalkylene radical or mixtures of such radicals. Said organic peroxide having 10 minute half-value temperature (T p ) of 100° C. to 170° C. and said blowing agent having a decomposition temperature (T f ) of 90° C. to 160° C., T p and T f satisfying the following equation: -1° C.≦T.sub.p -T.sub.f ≦50° C. molding said composition into pellets, powder, film or sheets, and subsequently heating said moldings in a single step.
References Cited (Backward Citations)
US4424181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |