US4447569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl chloride resin compositions having a high volume resistivity and resistance to deterioration when heated at temperatures above 100 degrees C.
Assignee: Argus Chemical Corp
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Filing: 1982-10-08
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Granted: 1984-05-08
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Expires: 2002-10-08
Abstract
Abstract Polyvinyl chloride resin compositions are provided, suitable for use as electrical insulation material, having a high volume resistivity and a high resistance to deterioration when heated at temperatures above 100° C., comprising as the essential ingredients a polyvinyl chloride resin and, in the amounts indicated, in parts per one hundred of resin, from about 30 to about 100 parts mono or poly carboxylic acid ester plasticizer; from about 5 to about 25 parts filler; from about 1 to about 20 parts epoxy compound, and from about 1 to about 20 parts lead alkyl phenolate.
Inventors
- 👤 Lawrence R. Brecker
- 👤 Charles Keeley
- 👤 Stuart D. Brilliant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:26
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/443; C; C08; C08K; C08K13/00; C08K13/02; C08K5/00; C08K5/04; C08K5/13; C08K5/138
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
92 words
An electrical grade polyvinyl chloride resin composition suitable for use as electrical insulation material, having a high volume resistivity and a high resistance to deterioration when heated at temperatures above 100° C., comprising as the essential ingredients a polyvinyl chloride resin and, in the amounts indicated, in parts per one hundred of resin, from about 30 to about 100 parts carboxylic acid ester plasticizer; from about 5 to about 25 parts filler; from about 1 to about 20 parts epoxy compound, and from about 1 to about 20 parts lead alkyl phenolate.
Claim 2
Dependent Claim
92 words
An electrical grade polyvinyl chloride resin composition suitable for use as electrical insulation material, having a high volume resistivity and a high resistance to deterioration when heated at temperatures above 100° C., comprising as the essential ingredients a polyvinyl chloride resin and, in the amounts indicated, in parts per one hundred of resin, from about 30 to about 100 parts carboxylic acid ester plasticizer; from about 5 to about 25 parts filler; from about 1 to about 20 parts epoxy compound, and from about 1 to about 20 parts lead alkyl phenolate.
Claim 3
Dependent Claim
49 words
An electrical grade polyvinyl chloride resin composition according to claim 1 in which the lead alkyl phenolate has the formula: ##STR5## wherein: R is an alkyl group having from one to about eighteen carbon atoms; n is a number from 1 to 4; and m is 1 or 2.
Claim 4
Dependent Claim
27 words
An electrical grade polyvinyl chloride resin composition according to claim 2 in which m is 1 and the lead alkyl phenolate is a basic lead alkyl phenolate.
Claim 5
Dependent Claim
27 words
An electrical grade polyvinyl chloride resin composition according to claim 3 in which m is 2, and the lead alkyl phenolate is a normal lead alkyl phenolate.
Claim 6
Dependent Claim
17 words
An electrical grade polyvinyl chloride resin composition according to claim 4 in which the alkyl is nonyl.
Claim 7
Dependent Claim
18 words
An electrical grade polyvinyl chloride resin composition according to claim 2 in which the filler is calcium carbonate.
Claim 8
Dependent Claim
17 words
An electrical grade polyvinyl chloride resin composition according to claim 2 in which the filler is clay.
Claim 9
Dependent Claim
126 words
An electrical grade polyvinyl chloride resin composition according to claim 2 in which the carboxylic acid ester has the formula: ##STR6## wherein: Z is selected from the group consisting of an aliphatic nucleus having from one to about thirty carbon atoms; a cycloaliphatic nucleus having from four to about thirty carbon atoms; and an aromatic nucleus having an aromatic ring structure of six or ten carbon atoms and a total of from six to about thirty carbon atoms; R 1 is an alkyl group having from one to about eighteen carbon atoms; and n 2 is a number from 1 to 4; and the carboxylic acid ester has a total of from twenty to about 150 carbon atoms, including both the Z and COOR 1 groups.
Claim 10
Dependent Claim
48 words
An electrical grade polyvinyl chloride resin composition according to claim 8 in which Z is a benzene ring and the structure is ##STR7## wherein: R 2 is an alkyl group having from one to about eighteen carbon atoms; and n 3 is a number from 0 to 4.
Claim 11
Dependent Claim
31 words
An electrical grade polyvinyl chloride resin composition according to claim 9 in which the carboxylic acid ester is selected from the group consisting of di-isotridecyl phthalate, tri-2-ethylhexyl trimellitate, and dioctyl phthalate.
Claim 12
Dependent Claim
23 words
An electrical grade polyvinyl chloride resin composition according to claim 8 in which the epoxy compound has from 10 to 150 carbon atoms.
Claim 13
Dependent Claim
28 words
An electrical grade polyvinyl chloride resin composition according to claim 11 in which the epoxy compound is an epoxy higher ester having from 22 to 150 carbon atoms.
Claim 14
Dependent Claim
20 words
An electrical grade polyvinyl chloride resin composition according to claim 12 in which the epoxy compound is epoxidized soybean oil.
Claim 15
Dependent Claim
17 words
An electrical grade polyvinyl chloride resin composition according to claim 13 in which the filler is clay.
Claim 16
Dependent Claim
44 words
An electrical grade polyvinyl chloride resin composition according to claim 1 in which the epoxy compound is epoxidized soybean oil, the filler is clay, the carboxylic acid ester is di-isotridecyl phthalate or tri-2-ethylhexyl trimellitate, and the lead alkyl phenolate is normal lead nonyl phenolate.
Claim 17
Dependent Claim
43 words
An electrical grade polyvinyl chloride resin composition according to claim 1 wherein the polyvinyl chloride resin is formed at least in part of the recurring group: ##STR8## and has a chlorine content in excess of 40%, where X is either hydrogen or chlorine.
Claim 18
Dependent Claim
22 words
An electrical grade polyvinyl chloride resin composition in accordance with claim 16 in which the polyvinyl chloride resin is polyvinyl chloride homopolymer.
Claim 19
Dependent Claim
27 words
An electrical grade polyvinyl chloride resin composition in accordance with claim 16 in which the polyvinyl chloride resin is a copolymer of vinyl chloride and vinyl acetate.
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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) | 1987-05-08 | 1987-11-07 | 1988-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-08 | 1991-11-07 | 1992-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-08 | 1995-11-07 | 1996-05-08 | $7700.00 | Window Closed / Lapsed |