US5310775A
Expired / Lapsed
US
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Nucleating system for poly(chlorofluoroethylene) and articles formed therefrom
Assignee: Honeywell International Inc
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Filing: 1992-07-20
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Granted: 1994-05-10
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Expires: 2012-07-20
Abstract
Abstract This invention relates to a composition comprising (a) at least one polymer selected from the group consisting of poly(chlorotrifluoroethylene) and copolymers of chlorotrifluoroethylene and one or more ethylenic comonomers; wherein said copolymers comprise at least about 50% by weight of chlorotrifluoroethylene and (b) effective amount of one or more nucleating agents selected from the group of compounds consisting of silver octonate, calcium carbonate, potassium benzoate, talc and lays bentonite, montmorillonite, hectorite and derivatives thereof.
Inventors
- 👤 John P. Sibilia
- 👤 Yash P. Khanna
- 👤 Anthony J. Signorelli
- 👤 Dean A. Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:39
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K3/346; C08K5/00; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
70 words
A composition comprising (a) at least one polymer selected from the group consisting of poly(chlorotrifluoroethylene) and copolymers of chlorotrifluoroethylene and one or more ethylenic comonomers; wherein said copolymers comprise at least about 50% by weight of chlorotrifluoroethylene and (b) effective amount of one or more nucleating agents selected from the group of compounds consisting of silver octonate, calcium carbonate, potassium benzoate, talc and lays bentonite, montmorillonite, hectorite and derivatives thereof.
Claim 2
Dependent Claim
70 words
A composition comprising (a) at least one polymer selected from the group consisting of poly(chlorotrifluoroethylene) and copolymers of chlorotrifluoroethylene and one or more ethylenic comonomers; wherein said copolymers comprise at least about 50% by weight of chlorotrifluoroethylene and (b) effective amount of one or more nucleating agents selected from the group of compounds consisting of silver octonate, calcium carbonate, potassium benzoate, talc and lays bentonite, montmorillonite, hectorite and derivatives thereof.
Claim 3
Dependent Claim
84 words
A process for enhancing the rate of crystallization of a polymer selected from the group consisting of poly(chlorotrifluoroethylene) and copolymers of chlorotrifluoroethylene and one or more ethylenic comonomers; wherein said copolymers comprise at least about 50% by weight of chlorotrifluoroethylene from the melt, which comprises adding to said poly(chlorotrifluoroethylene) a crystallization enhancing effective amount of one or more nucleating agents selected from the group of compounds consisting of silver octonate, calcium carbonate, potassium benzoate, talc clays selected from bentonite, montmorillonite, hectorite and derivatives thereof.
Claim 4
Dependent Claim
84 words
A process for enhancing the rate of crystallization of a polymer selected from the group consisting of poly(chlorotrifluoroethylene) and copolymers of chlorotrifluoroethylene and one or more ethylenic comonomers; wherein said copolymers comprise at least about 50% by weight of chlorotrifluoroethylene from the melt, which comprises adding to said poly(chlorotrifluoroethylene) a crystallization enhancing effective amount of one or more nucleating agents selected from the group of compounds consisting of silver octonate, calcium carbonate, potassium benzoate, talc clays selected from bentonite, montmorillonite, hectorite and derivatives thereof.
Claim 5
Dependent Claim
22 words
The composition of claim 1 wherein the nucleating agent is a clay which has been treated with one or more protonating agent.
Claim 6
Dependent Claim
23 words
The composition of claim 1 wherein the nucleating agent is a clay which has been treated with one or more organic protonating agents.
Claim 7
Dependent Claim
26 words
The composition of claim 1 wherein the nucleating agent is a clay which has been treated with one or more organic protonating amines or quaternary salts.
Claim 8
Dependent Claim
21 words
The composition of claim 1 wherein the nucleating agent is a clay which has been treated with one or more silanes.
Claim 9
Dependent Claim
15 words
The composition of claim 1 wherein the nucleating agent is selected from montmorillonite and hectorite.
Claim 10
Dependent Claim
16 words
The composition of claim 1 wherein the nucleating agent is selected from clays which contain magnesium.
Claim 11
Dependent Claim
15 words
The composition of claim 1 wherein the nucleating agent is hectorite, potassium benzoate or talc.
Claim 12
Dependent Claim
11 words
The composition of claim 1 wherein the nucleating agent is hectorite.
Claim 13
Dependent Claim
12 words
The composition of claim 1 wherein the nucleating agent is potassium benzoate.
Claim 14
Dependent Claim
11 words
The composition of claim 1 wherein the nucleating agent is talc.
Claim 15
Dependent Claim
17 words
The composition of claim 1 wherein said copolymers comprise at least about 75% by weight of chlorotrifluoroethylene.
Claim 16
Dependent Claim
17 words
The composition of claim 1 wherein said copolymers comprise at least about 85% by weight of chlorotrifluoroethylene.
Claim 17
Dependent Claim
17 words
The composition of claim 1 wherein said copolymers comprise at least about 90% by weight of chlorotrifluoroethylene.
Claim 18
Dependent Claim
29 words
The composition of claim 1 wherein said amount of nucleating agent or agents is about 0.001 to about 5 weight percent based on the total weight of the polymer.
Claim 19
Dependent Claim
92 words
A composition comprising (a) at least one polymer selected from the group consisting of poly(chlorotrifluoroethylene) and copolymers of chlorotrifluoroethylene and one or more ethylenic comonomers; wherein said copolymers comprise at least about 50% by weight of chlorotrifluoroethylene and (b) one or more compounds selected from the group of compounds consisting of silver octonate, calcium carbonate, potassium benzoate, talc, bentonite, montmorillonite, hectorite and derivatives thereof; wherein sum of weight percent of the compounds of (b) is about 0.001 to about 5 percent based on the total weight percent of the polymer or copolymer.
Claim 20
Dependent Claim
92 words
A composition comprising (a) at least one polymer selected from the group consisting of poly(chlorotrifluoroethylene) and copolymers of chlorotrifluoroethylene and one or more ethylenic comonomers; wherein said copolymers comprise at least about 50% by weight of chlorotrifluoroethylene and (b) one or more compounds selected from the group of compounds consisting of silver octonate, calcium carbonate, potassium benzoate, talc, bentonite, montmorillonite, hectorite and derivatives thereof; wherein sum of weight percent of the compounds of (b) is about 0.001 to about 5 percent based on the total weight percent of the polymer or copolymer.
Claim 21
Dependent Claim
19 words
The composition of claim 1 wherein the nucleating agent has a particle size of less than about 200 μm.
Claim 22
Dependent Claim
24 words
The composition of claim 1 wherein the nucleating agent has a particle size ranging from at least about 0.25 μm to about 150 μm.
Claim 23
Dependent Claim
24 words
The composition of claim 1 wherein the nucleating agent has a particle size ranging from at least about 0.25 μm to about 100 μm.
Claim 24
Dependent Claim
24 words
The composition of claim 1 wherein the nucleating agent has a particle size ranging from at least about 0.5 μm to about 60 μm.
Claim 25
Dependent Claim
23 words
The composition of claim 12 wherein the nucleating agent has a particle size of at least about 0.5 μm to about 60 μm.
Claim 26
Dependent Claim
23 words
The composition of claim 12 wherein the nucleating agent has a particle size of at least about 0.5 μm to about 40 μm.
Claim 27
Dependent Claim
23 words
The composition of claim 12 wherein the nucleating agent has a particle size of at least about 0.5 μm to about 30 μm.
References Cited (Backward Citations)
US4749736A
Cited
US5122592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-09 | 1997-11-08 | 1998-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-09 | 2001-11-08 | 2002-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-09 | 2005-11-08 | 2006-05-10 | $7700.00 | Window Closed / Lapsed |