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Patent US3933708A successfully refreshed from Google Patents.
US3933708A
Expired / Lapsed
US
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Crayon wax composition
Assignee: Sunoco Inc R&M
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Filing: 1973-05-24
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Granted: 1976-01-20
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Expires: 1993-05-24
Abstract
Abstract An improved crayon wax composition having a wax base, stearic acid, pigment and an additive mixture which comprises polyethylene having a molecular weight between 500,000-6,000,000 is disclosed. Use of the polyethylene in small amounts enables the replacement of higher melting point waxes with low-melting point paraffin wax of 120°-140°F, while still maintaining the required performance qualities of the crayon wax.
Inventors
- 👤 Robert B. Brinkman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:51
CPC Classifications
C; C09; C09D; C09D13/00; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L91/00; C08L91/06; C08L91/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
60 words
An improved crayon wax composition containing a base wax, stearic acid, and a pigment wherein the improvement consists essentially of an additive mixture of: a. polyethylene having a molecular weight of about 500,000-6,000,000 wherein the polyethylene is in the amount of about 0.10%-10% by weight of the total composition; and b. paraffin wax having a melting point of about 120°F-140°F.
Claim 2
Dependent Claim
60 words
An improved crayon wax composition containing a base wax, stearic acid, and a pigment wherein the improvement consists essentially of an additive mixture of: a. polyethylene having a molecular weight of about 500,000-6,000,000 wherein the polyethylene is in the amount of about 0.10%-10% by weight of the total composition; and b. paraffin wax having a melting point of about 120°F-140°F.
Claim 3
Dependent Claim
34 words
Crayon wax composition according to claim 1 wherein the base wax consists essentially of paraffin wax having a melting point of about 140°F-165°F, and a microcrystalline wax having a melting point of about 140°F-210°F.
Claim 4
Dependent Claim
58 words
Crayon wax composition according to claim 2 wherein the base wax consists essentially of the paraffin wax in the amount of about 30%-95% by weight, the microcrystalline wax in the amount of about 1%-5% by weight, the stearic acid in the amount of about 10%-50% by weight and the pigment in the amount of about 0.5%-25% by weight.
Claim 5
Dependent Claim
48 words
A crayon wax composition consisting essentially of: a. polyethylene having a molecular weight of about 500,000-6,000,000 wherein the polyethylene is in the amount of about 0.25%-5% by weight of the total composition, b. paraffin wax having a melting point of about 120°F-140°F, c. stearic acid; and d. pigment.
Claim 6
Dependent Claim
48 words
A crayon wax composition consisting essentially of: a. polyethylene having a molecular weight of about 500,000-6,000,000 wherein the polyethylene is in the amount of about 0.25%-5% by weight of the total composition, b. paraffin wax having a melting point of about 120°F-140°F, c. stearic acid; and d. pigment.
Claim 7
Dependent Claim
34 words
A composition according to claim 4 wherein the stearic acid is in the amount of 10%-50% by weight and the pigment is in the amount of about 0.5%-75% by weight of the total composition.
References Cited (Backward Citations)
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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) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |