US3981833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch/polyester resin composition
Assignee: BP Corp North America Inc
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Filing: 1975-04-01
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Granted: 1976-09-21
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Expires: 1995-04-01
Abstract
Abstract A composition suitable for warp sizing polyester/cotton yarns comprising starch and water soluble polyester resin having (1) a backbone portion comprising the reaction product of polyhydroxy compound and dicarboxylic acid compound wherein from 20 to 75 equivalent percent of the hydroxy groups are provided by a polyoxyethylene glycol having at least 3 oxyethylene units and at least 50 equivalent percent of the dicarboxylic acid compound is provided by an aromatic dicarboxylic acid compound and (2) pendant carboxylic acid moieties comprising a polycarboxylic acid compound having at least 3 acyl moieties which provides from 5 to 30 equivalent percent of the acyl moieties in the polyester.
Inventors
- 👤 John C. Lark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:13
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/507; D06M15/01; D06M15/03; D06M15/11; Y; Y10; Y10T; Y10T442/00; Y10T442/30; Y10T442/3049
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
A composition comprising pasted starch and water soluble polyester resin having an acid number of at least 35 comprising (1) a backbone portion having an acid number of from 0-25 comprising the reaction product of polyhydroxy compound and dicarboxylic acid compound having a hydroxyl:carboxyl ratio of more than one wherein from 20 to 75 equivalent percent of the hydroxy groups are provided by a polyoxyethylene glycol having at least 3 oxyethylene units and at least 50 equivalent percent of the dicarboxylic acid compound is provided by an aromatic dicarboxylic acid compound and (2) pendant carboxylic acid moieties comprising a polycarboxylic acid compound having at least 3 acyl moieties which provides from 5 to 30 equivalent percent of the acyl moieties in the polyester, wherein said polyester resin comprises from 0.1-100 parts by weight per each 100 parts by weight starch.
Claim 2
Dependent Claim
140 words
A composition comprising pasted starch and water soluble polyester resin having an acid number of at least 35 comprising (1) a backbone portion having an acid number of from 0-25 comprising the reaction product of polyhydroxy compound and dicarboxylic acid compound having a hydroxyl:carboxyl ratio of more than one wherein from 20 to 75 equivalent percent of the hydroxy groups are provided by a polyoxyethylene glycol having at least 3 oxyethylene units and at least 50 equivalent percent of the dicarboxylic acid compound is provided by an aromatic dicarboxylic acid compound and (2) pendant carboxylic acid moieties comprising a polycarboxylic acid compound having at least 3 acyl moieties which provides from 5 to 30 equivalent percent of the acyl moieties in the polyester, wherein said polyester resin comprises from 0.1-100 parts by weight per each 100 parts by weight starch.
Claim 3
Dependent Claim
30 words
The composition of claim 1 wherein from 5 to 30 equivalent percent of the hydroxyl groups in the polyester are provided by polyhydroxy compound having at least 3 hydroxy moieties.
Claim 4
Dependent Claim
20 words
The composition of claim 2 wherein said polyoxyethylene glycol contains on an average from about 10 to 40 oxyethylene units.
Claim 5
Dependent Claim
32 words
The composition of claim 2 wherein up to 50 equivalent percent of the acyl equivalents in the backbone portion of the polyester are provided by saturated aliphatic and cyclic aliphatic dicarboxylic acids.
Claim 6
Dependent Claim
16 words
The compositions of claim 2 wherein said pendant polycarboxylic acid compound comprise a trimellitic acid compound.
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) | 1979-09-21 | 1980-03-22 | 1980-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-21 | 1984-03-22 | 1984-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-21 | 1988-03-22 | 1988-09-21 | $7700.00 | Window Closed / Lapsed |