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US4598116A
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Scorch resistant compositions based on water-curable thermoplastic polymers having hydrolyzable, pendant silane moieties, and organo titanates
Assignee: Union Carbide Corp
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Filing: 1984-11-09
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Granted: 1986-07-01
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Expires: 2004-11-09
Abstract
Abstract Scorch resistant compositions comprising thermoplastic polymers having hydrolyzable, pendant silane moieties, prepared in the presence of a free radical generating compound and organo titanates, which are particularly useful as extrudates about wires and cables.
Inventors
- 👤 Michael J. Keogh
- 👤 Gary H. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:56
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; C; C08; C08K; C08K5/00; C08K5/0091; C08L; C08L101/00; C08L101/02; C08L101/10
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
62 words
A composition consisting essentially of a preformed water-curable thermoplastic polymer having hydrolyzable, pendant silane moieties, prepared in the presence of a free radical generating compound; and an organo titanate having the formula: Ti(OR.sup.2).sub.4 wherein each R 2 is a monovalent hydrocarbon radical having 1 to 3 carbon atoms inclusive, said organo titanate being present in at least about 0.05 percent by weight.
Claim 2
Dependent Claim
62 words
A composition consisting essentially of a preformed water-curable thermoplastic polymer having hydrolyzable, pendant silane moieties, prepared in the presence of a free radical generating compound; and an organo titanate having the formula: Ti(OR.sup.2).sub.4 wherein each R 2 is a monovalent hydrocarbon radical having 1 to 3 carbon atoms inclusive, said organo titanate being present in at least about 0.05 percent by weight.
Claim 3
Dependent Claim
25 words
A composition as defined in claim 1 wherein said organo titanate is present in an amount of about 0.05 to about 10 percent by weight.
Claim 4
Dependent Claim
25 words
A composition as defined in claim 1 wherein said organo titanate is present in an amount of about 0.1 to about 5 percent by weight.
Claim 5
Dependent Claim
19 words
A composition as defined in claim 1 wherein said organo titanate is tetramethyl titanate, tetraethyl titanate or tetraisopropyl titanate.
Claim 6
Dependent Claim
17 words
A composition as defined in claim 1 wherein said pendant silane moieties are derived from vinyltrioctoxy silane.
Claim 7
Dependent Claim
17 words
A composition as defined in claim 1 wherein said pendant silane moieties are derived from vinyltridodecyloxy silane.
Claim 8
Dependent Claim
17 words
A composition as defined in claim 1 wherein said pendant silane moieties are derived from vinyltrimethoxy silane.
Claim 9
Dependent Claim
64 words
A composition consisting essentially of a preformed water-curable thermoplastic polymer having grafted thereto hydrolyzable, pendant silane moieties, prepared in the presence of a free radical generating compound; and an organo titanate having the formula: Ti(OR.sup.2).sub.4 wherein each R 2 is a monovalent hydrocarbon radical having 1 to 3 carbon atoms inclusive, said organo titanate being present in at least about 0.05 percent by weight.
Claim 10
Dependent Claim
64 words
A composition consisting essentially of a preformed water-curable thermoplastic polymer having grafted thereto hydrolyzable, pendant silane moieties, prepared in the presence of a free radical generating compound; and an organo titanate having the formula: Ti(OR.sup.2).sub.4 wherein each R 2 is a monovalent hydrocarbon radical having 1 to 3 carbon atoms inclusive, said organo titanate being present in at least about 0.05 percent by weight.
Claim 11
Dependent Claim
22 words
A composition as defined in claim 8 wherein the said preformed, water-curable polymer is polyethylene having grafted thereto hydrolyzable, pendant silane moieties.
Claim 12
Dependent Claim
25 words
A composition as defined in claim 8 wherein the said preformed, water-curable polymer is an alkylene-alkyl acrylate copolymer having grafted thereto hydrolyzable, pendant silane moieties.
Claim 13
Dependent Claim
25 words
A composition as defined in claim 10 wherein the said alkylene-alkyl acrylate copolymer is an ethylene-ethyl acrylate copolymer having grafted thereto hydrolyzable, pendant silane moieties.
Claim 14
Dependent Claim
35 words
A composition as defined in claim 8 wherein said preformed, water-curable polymer is a polymer of ethylene and at least one C 3 to C 8 alpha olefin having grafted thereto hydrolyzable, pendant silane moieties.
Claim 15
Dependent Claim
20 words
A composition as defined in claim 12 wherein said ethylene polymer has a density of about 0.875 to about 0.970.
Claim 16
Dependent Claim
15 words
A composition as defined in claim 12 wherein said ethylene polymer is an ethylene-butene-1 copolymer.
Claim 17
Dependent Claim
37 words
A composition as defined in claim 8 wherein said water-curable thermoplastic polymer is an ethylene-ethyl acrylate copolymer having pendant silane moieties derived from vinyltrioctoxy silane and said organo titanate is tetraisopropyl titanate, tetraethyl titanate or tetramethyl titanate.
Claim 18
Dependent Claim
36 words
A composition as defined in claim 8 wherein said water-curable thermoplastic polymer is an ethylene-butene-1 copolymer having pendant silane moieties derived from vinyltrimethoxy silane and said organo titanate is tetraisopropyl titanate, tetraethyl titanate or tetramethyl titanate.
Claim 19
Dependent Claim
64 words
A composition consisting essentially of a preformed water-curable polymer of an olefinic monomer and an unsaturated silane, prepared in the presence of a free radical generating compound; and an organo titanate having the formula: Ti(OR.sup.2).sub.4 wherein each R 2 is a monovalent hydrocarbon radical having 1 to 3 carbon atoms inclusive, said organo titanate being present in at least about 0.05 percent by weight.
Claim 20
Dependent Claim
64 words
A composition consisting essentially of a preformed water-curable polymer of an olefinic monomer and an unsaturated silane, prepared in the presence of a free radical generating compound; and an organo titanate having the formula: Ti(OR.sup.2).sub.4 wherein each R 2 is a monovalent hydrocarbon radical having 1 to 3 carbon atoms inclusive, said organo titanate being present in at least about 0.05 percent by weight.
Claim 21
Dependent Claim
21 words
A composition as defined in claim 17 wherein said preformed, water-curable polymer is a copolymer of ethylene and an unsaturated silane.
Claim 22
Dependent Claim
20 words
A composition as defined in claim 18 wherein said preformed, water-curable polymer is a copolymer of ethylene and vinyltrimethoxy silane.
Claim 23
Dependent Claim
32 words
A composition as defined in claim 17 wherein said preformed, water-curable polymer is a copolymer of ethylene and vinyltrimethoxy silane and said organo titanate is tetramethyl titanate, tetraethyl titanate or tetraisopropyl titanate.
Claim 24
Dependent Claim
73 words
A process which consists essentially of admixing a preformed, water-curable thermoplastic polymer having hydrolyzable, pendant silane moieties, prepared in the presence of a free radical generating compound with at least about 0.05 percent by weight of an organo titanate having the formula: Ti(OR.sup.2).sub.4 wherein each R 2 is a monovalent hydrocarbon radical having 1 to 3 carbon atoms inclusive, forming said resultant composition into a shaped article and water-curing the said shaped article.
Claim 25
Dependent Claim
73 words
A process which consists essentially of admixing a preformed, water-curable thermoplastic polymer having hydrolyzable, pendant silane moieties, prepared in the presence of a free radical generating compound with at least about 0.05 percent by weight of an organo titanate having the formula: Ti(OR.sup.2).sub.4 wherein each R 2 is a monovalent hydrocarbon radical having 1 to 3 carbon atoms inclusive, forming said resultant composition into a shaped article and water-curing the said shaped article.
Claim 26
Dependent Claim
35 words
A process as defined in claim 21 wherein a metal carboxylate silanol condensation catalyst is added to the composition of said thermoplastic polymer and organo titanate prior to forming said composition into a shaped article.
Claim 27
Dependent Claim
14 words
A process as defined in claim 22 wherein said metal carboxylate is dibutyltin dilaurate.
Claim 28
Dependent Claim
95 words
A process of applying a coating onto a wire or cable which consists essentially of feeding a preformed, water-curable thermoplastic polymer having hydrolyzable, pendant silane moieties, prepared in the presence of a free radical generating compound, into an extruder wherein said polymer is melted, adding to said melted polymer at least about 0.05 percent by weight of an organo titanate having the formula: Ti(OR.sup.2).sub.4 wherein each R 2 is a monovalent hydrocarbon radical having 1 to 3 carbon atoms inclusive, fluxing the resultant composition and thereafter extruding the resultant composition about a wire or cable.
Claim 29
Dependent Claim
95 words
A process of applying a coating onto a wire or cable which consists essentially of feeding a preformed, water-curable thermoplastic polymer having hydrolyzable, pendant silane moieties, prepared in the presence of a free radical generating compound, into an extruder wherein said polymer is melted, adding to said melted polymer at least about 0.05 percent by weight of an organo titanate having the formula: Ti(OR.sup.2).sub.4 wherein each R 2 is a monovalent hydrocarbon radical having 1 to 3 carbon atoms inclusive, fluxing the resultant composition and thereafter extruding the resultant composition about a wire or cable.
Claim 30
Dependent Claim
27 words
A process as defined in claim 24 wherein a metal carboxylate is added to the fluxed composition prior to extruding the composition about a wire or cable.
Claim 31
Dependent Claim
14 words
A process as defined in claim 25 wherein the metal carboxylate is dibutyltin dilaurate.
Claim 32
Dependent Claim
18 words
A composition as defined in claim 1 to which has been added a metal carboxylate silanol condensation catalyst.
Claim 33
Dependent Claim
17 words
A composition as defined in claim 27 wherein the metal carboxylate silanol condensation catalyst is dibutyltin dilaurate.
Claim 34
Dependent Claim
10 words
The crosslinked product of the composition defined in claim 1.
Claim 35
Dependent Claim
19 words
A wire or cable having thereon the composition or the crosslinked product of the composition defined in claim 1.
Claim 36
Dependent Claim
37 words
A composition as defined in claim 8 wherein said water-curable thermoplastic polymer is an ethylene-ethyl acrylate copolymer having pendant silane moieties derived from vinyltridodecyloxy silane and said organo titanate is tetraisopropyl titanate, tetraethyl titanate or tetramethyl titanate.
Claim 37
Dependent Claim
14 words
A composition as defined in claim 1 wherein the organo titanate is tetramethyl titanate.
Claim 38
Dependent Claim
14 words
A composition as defined in claim 1 wherein the organo titanate is tetraethyl titanate.
Claim 39
Dependent Claim
14 words
A composition as defined in claim 1 wherein the organo titanate is tetraisopropyl titanate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |