US3928267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid stabilizer system for polyvinyl chloride
Assignee: Henkel Corp
•
Filing: 1973-03-05
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Granted: 1975-12-23
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Expires: 1993-03-05
Abstract
Abstract Homogeneous liquid stabilizer compositions are provided which are useful with polyvinyl chloride resins to impart improved antistatic and antifogging properties in addition to stabilizing the resins. The stabilizer solutions are obtained using a specific procedure for blending the individual stabilizer components.
Inventors
- 👤 Philip H Rhodes
- 👤 Robert L Ahr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:35
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1515; C08J; C08J3/00; C08J3/20; C08J3/22; C08K5/49; C08K5/51; C08K5/52; C08K5/524; C08J2357/00; Y; Y10; Y10S; Y10S524/00; Y10S524/91; Y10S524/912
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
19 words
A METHOD FOR STABILIZING VINYL POLYMER RESIN TO IMPART ANTIFOGGING AND ANTISTATIC PROPERTIES AND IMPROVE HEAT STABILITY WHICH COMPRISES:
Claim 2
Independent Claim
19 words
A METHOD FOR STABILIZING VINYL POLYMER RESIN TO IMPART ANTIFOGGING AND ANTISTATIC PROPERTIES AND IMPROVE HEAT STABILITY WHICH COMPRISES:
Claim 3
Dependent Claim
62 words
ADMIXING AT A TEMPERTURE OF 100*C TO 200*C UNTIL SOLUTION HAS BEEN EFFECTED (A) 5 TO 50 PARTS BY WEIGHT ALIPHATIC OR CYCLOALIPHATIC EPOXY COMPOUND CONTAINING FROM 10 TO 180 CARBON ATOMS, (B) 1 TO 35 PARTS POLYVALENT METAL SALT OF A MONOCARBOYLIC ACID CONTAINING FROM 6 TO 26 CARBON ATOMS AND (C) 10 TO 80 PARTS ORGANOPHOSPHOROUS COMPOUND OF THE FORMULA
Claim 4
Dependent Claim
62 words
ADMIXING AT A TEMPERTURE OF 100*C TO 200*C UNTIL SOLUTION HAS BEEN EFFECTED (A) 5 TO 50 PARTS BY WEIGHT ALIPHATIC OR CYCLOALIPHATIC EPOXY COMPOUND CONTAINING FROM 10 TO 180 CARBON ATOMS, (B) 1 TO 35 PARTS POLYVALENT METAL SALT OF A MONOCARBOYLIC ACID CONTAINING FROM 6 TO 26 CARBON ATOMS AND (C) 10 TO 80 PARTS ORGANOPHOSPHOROUS COMPOUND OF THE FORMULA
Claim 5
Dependent Claim
41 words
ADDING 35 TO 85 PARTS OF A PARTIAL ESTER OF A POLYGLYCEROL HAVING NOT MORE THAN 75% OF THE POLYGLYCEROL HYDROXYL GROUPS REACTED AND DERIVED FROM A C6-24 MONOCARBOXYLI ACID AND A POLYGLYCEROL CONTAINING 2 TO 30 CONDENSED GLYCEROL UNITS; AND
Claim 6
Dependent Claim
41 words
ADDING 35 TO 85 PARTS OF A PARTIAL ESTER OF A POLYGLYCEROL HAVING NOT MORE THAN 75% OF THE POLYGLYCEROL HYDROXYL GROUPS REACTED AND DERIVED FROM A C6-24 MONOCARBOXYLI ACID AND A POLYGLYCEROL CONTAINING 2 TO 30 CONDENSED GLYCEROL UNITS; AND
Claim 7
Dependent Claim
100 words
The method of claim 1 where in step (1) the temperature does not exceed 165*C, (a) contains from 20 to 150 carbon atoms, (b) is the zinc salf or a mixture of calcium and zinc salts of an aliphatic monocarboxylic acid containing from 12 to 20 carbon atoms, (c) is a phosphite compound with R groups containing 6 to 20 carbon atoms and the polyglycerol partial ester has less than 50% of the polyglycerol hydroxyl groups reacted and is derived from a fatty acid containing 8 to 18 carbon atoms and a polyglycerol containing 2 to 20 condensed glycerol units.
Claim 8
Dependent Claim
41 words
adding 35 to 85 parts of a partial ester of a polyglycerol having not more than 75% of the polyglycerol hydroxyl groups reacted and derived from a C6-24 monocarboxylic acid and a polyglycerol containing 2 to 30 condensed glycerol units; and
Claim 9
Dependent Claim
41 words
adding 35 to 85 parts of a partial ester of a polyglycerol having not more than 75% of the polyglycerol hydroxyl groups reacted and derived from a C6-24 monocarboxylic acid and a polyglycerol containing 2 to 30 condensed glycerol units; and
Claim 10
Dependent Claim
20 words
incorporating 0.5 to 25 parts by weight of the resulting liquid stabilizer into 100 parts polyvinyl chloride homopolymer or copolymer.
Claim 11
Dependent Claim
20 words
incorporating 0.5 to 25 parts by weight of the resulting liquid stabilizer into 100 parts polyvinyl chloride homopolymer or copolymer.
Claim 12
Dependent Claim
24 words
The method of claim 2 wherein 2 to 6 parts by weight of the liquid stabilizer is incorporated into a film-forming polyvinyl chloride polymer.
Claim 13
Dependent Claim
20 words
INCORPORATING 0.5 TO 25 PARTS BY WEIGHT OF THE RESULTING LIQUID STABILIZER INTO 100 PARTS POLYVINYL CHLORIDE HOMOPOLYMER OR COPOLYMER.
Claim 14
Dependent Claim
20 words
INCORPORATING 0.5 TO 25 PARTS BY WEIGHT OF THE RESULTING LIQUID STABILIZER INTO 100 PARTS POLYVINYL CHLORIDE HOMOPOLYMER OR COPOLYMER.
Claim 15
Dependent Claim
22 words
The method of claim 3 wherein (a) is an epoxidized naturally occuring oil, (b) is zinc stearate and (c) is tri(nonylphenyl) phosphite.
Claim 16
Dependent Claim
7 words
The stabilized resin composition of claim 1.
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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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |