Patent US4143006A successfully refreshed from Google Patents.
US4143006A
Expired / Lapsed
US
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Size composition for treating glass fibers for reinforcement of paper comprising starch, a polyolefin emulsion and lubricant
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1977-01-10
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Granted: 1979-03-06
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Expires: 1997-01-10
Abstract
Abstract A size composition for use in the treatment of glass fibers as reinforcement for paper wherein the size composition is formulated of starch, a polyolefin emulsion and a lubricant and/or emulsifier. The composition can also be formulated to include a wax. Glass fibers treated with the size composition of the invention have a reduced "fuzz" content as well as improved processing characteristics.
Inventors
- 👤 Gerald B. Workman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:28
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/32; C03C25/321; D; D21; D21H; D21H13/00; D21H13/36; D21H13/38; D21H13/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
28 words
An aqueous size composition for use in the treatment of glass fibers for reinforcement of paper comprising: (a) a starch, (b) a polyolefin emulsion, and (c) a lubricant.
Claim 2
Dependent Claim
28 words
An aqueous size composition for use in the treatment of glass fibers for reinforcement of paper comprising: (a) a starch, (b) a polyolefin emulsion, and (c) a lubricant.
Claim 3
Dependent Claim
25 words
A composition as defined in claim 1 wherein the polyolefin is selected from the group consisting of polyethylene, polypropylene and copolymers of ethylene and propylene.
Claim 4
Dependent Claim
25 words
A composition as defined in claim 1 wherein the starch is selected from the group consisting of high amylose corn starch and derivatized potato starch.
Claim 5
Dependent Claim
56 words
A composition as defined in claim 1 wherein the lubricant is selected from the group consisting of (1) the reaction product of a polyalkylene polyamine with a long-chain fatty acid, (2) esters of fatty acids, (3) esters of fatty alcohols and (4) mixtures thereof, said acids and said alcohols containing between 8 and 20 carbon atoms.
Claim 6
Dependent Claim
14 words
A composition as defined in claim 1 which further contains at least one emulsifier.
Claim 7
Dependent Claim
22 words
A composition as defined in claim 5 wherein the emulsifier is selected from the group consisting of sorbitan-based emulsifiers and alkylphenoxypoly(oxyethylene) ethanols.
Claim 8
Dependent Claim
13 words
A composition as defined in claim 4 which further includes a paraffin wax.
Claim 9
Dependent Claim
34 words
A composition as defined in claim 1 wherein the composition includes, based on total weight of composition, 1 to 10% by weight of the starch and 1 to 10% by weight of the polyolefin.
Claim 10
Dependent Claim
18 words
A composition as defined in claim 8 wherein the lubricant ranges from about 0.1% to 5% by weight.
Claim 11
Dependent Claim
23 words
A composition as defined in claim 7 wherein the paraffin wax ranges from about 0.1 to 3% of the total weight of composition.
Claim 12
Dependent Claim
50 words
A size composition as defined in claim 7 containing, based on total weight of said composition, 1% to 10% by weight of said starch, 1% to 10% by weight of said polyolefin emulsion, 0.1% to 3% by weight of said wax and 0.1% to 5% by weight of said lubricant.
Claim 13
Dependent Claim
16 words
The size composition of claim 11 further comprising 0.1 to 5% by weight of an emulsifier.
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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) | 1982-03-05 | 1982-09-04 | 1983-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-05 | 1986-09-04 | 1987-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-05 | 1990-09-04 | 1991-03-06 | $7700.00 | Window Closed / Lapsed |