US3883362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friable compositions and process for producing same
Assignee: Vista Chemical Co
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Filing: 1974-05-01
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Granted: 1975-05-13
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Expires: 1994-05-01
Abstract
Abstract Friable compositions suitable for use as extrusion aids in polymeric extrusion formulations are prepared by a process which comprises mixing a paraffinic hydrocarbon wax, calcium hydroxide and a fatty acid while heating to a temperature of at least 150*C and thereafter cooling to recover a solid, glass-like, friable composition, said paraffinic hydrocarbon wax having a drop melting point of at least 110*F, an oil content of not greater than 50 percent by weight and a needle penetration value (77*F) in the range of 1 mm to 20 mm, and said fatty acid being a C16C24 aliphatic hydrocarbon monocarboxylic acid or mixtures thereof.
Inventors
- 👤 James E Yates
- 👤 Paul H Washecheck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:52
CPC Classifications
C; C08; C08L; C08L101/00; C08J; C08J5/00; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/09; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L91/00; C08L91/06; C08L91/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
86 words
PROCESS WHICH COMPRISES MIXING A PARAFFINIC HYDROCARBON WAX, CALCIUM HYDROXIDE AND A FATTY ACID WHILE HEATING TO A TEMPERATURE OF AT LEAST 150*C AND THEREAFTER COOLING TO RECOVER A SOLID, GLASS-LIKE, FRIABLE COMPOSITION, SAID PARAFFINIC HYDROCARBON WAX HAVING A DROP MELTING POINT OF AT LEAST 110*F, AN OIL CONTENT OF NOT GREATER THAN 50 PERCENT BY WEIGHT AND A NEEDLE PENETRATION VALUE (77*F) IN THE RANGE OF 1 MM TO 20 MM, AND SAID FATTY ACID BEING A C16-C24 ALIPHATIC HYDROCARBON MONOCARBOXYLIC ACID OR MIXTURES THEREOF.
Claim 2
Dependent Claim
86 words
PROCESS WHICH COMPRISES MIXING A PARAFFINIC HYDROCARBON WAX, CALCIUM HYDROXIDE AND A FATTY ACID WHILE HEATING TO A TEMPERATURE OF AT LEAST 150*C AND THEREAFTER COOLING TO RECOVER A SOLID, GLASS-LIKE, FRIABLE COMPOSITION, SAID PARAFFINIC HYDROCARBON WAX HAVING A DROP MELTING POINT OF AT LEAST 110*F, AN OIL CONTENT OF NOT GREATER THAN 50 PERCENT BY WEIGHT AND A NEEDLE PENETRATION VALUE (77*F) IN THE RANGE OF 1 MM TO 20 MM, AND SAID FATTY ACID BEING A C16-C24 ALIPHATIC HYDROCARBON MONOCARBOXYLIC ACID OR MIXTURES THEREOF.
Claim 3
Dependent Claim
15 words
A process according to claim 1 wherein the mixture is heated to at least 180*C.
Claim 4
Dependent Claim
23 words
A process according to claim 1 wherein the fatty acid is mixed with the paraffinic hydrocarbon wax prior to adding the calcium hydroxide.
Claim 5
Dependent Claim
23 words
A process according to claim 1 wherein the calcium hydroxide is mixed with the paraffinic hydrocarbon wax prior to adding the fatty acid.
Claim 6
Dependent Claim
24 words
A process according to claim 1 wherein the mol ratio of calcium hydroxide to fatty acid is in the range of 0.5/1 to 1/1.
Claim 7
Dependent Claim
14 words
A process according to claim 5 wherein the mol ratio is 0.55/1 to 0.65/1.
Claim 8
Dependent Claim
23 words
A process according to claim 5 wherein the weight ratio of wax to fatty acid is in the range of 0.5/1 to 2/1.
Claim 9
Dependent Claim
19 words
A process according to claim 6 wherein the weight ratio of wax to fatty acid is 0.9/1 to 1/1.
Claim 10
Dependent Claim
46 words
A process according to claim 2 wherein the paraffinic hydrocarbon wax has a drop melting point of at least 145*F, an oil content of not greater than 20 weight percent and a needle penetration value at 77*F in the range of 1 mm to 10 mm.
Claim 11
Dependent Claim
30 words
A process accorDing to claim 9 wherein the fatty acid is palmitic acid, stearic acid, oleic acid, linoleic acid, tall oil fatty acid, eicosanic acid, behenic acid, or mixtures thereof.
Claim 12
Dependent Claim
14 words
A process according to claim 1 wherein a mixture of fatty acids is employed.
Claim 13
Dependent Claim
25 words
A process according to claim 11 wherein the mixture of fatty acids contains up to 15 weight percent of a C14 aliphatic hydrocarbon monocarboxylic acid.
Claim 14
Dependent Claim
15 words
A composition which is friable at ambient temperatures prepared by the process of claim 1.
Claim 15
Dependent Claim
15 words
A composition which is friable at ambient temperatures prepared by the process of claim 2.
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) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |