US4080316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble polyester bulking resin
Assignee: BP Corp North America Inc
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Filing: 1977-03-24
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Granted: 1978-03-21
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Expires: 1997-03-24
Abstract
Abstract A water-soluble polyester resin having a molecular weight of not more than about 4,000 and an acid number of at least 35 which comprises (1) a branched chain three-dimensional polyester core having an acid number less than about 25 comprising the reaction product of a polyhydroxyl compound, dicarboxylic acid compound, monocarboxylic acid compound and polycarboxylic acid compound having at least three acyl moieties, and (2) pendant carboxylic acid moieties comprising polycarboxylic acid compounds having at least three acyl moieties, wherein said polyester resin contains no non-benzenoid unsaturation and none of the hydroxyl compounds have secondary hydroxyl groups and compositions comprising an aminoplast suitable for use as polyester fabric bulking agents.
Inventors
- 👤 Eugene M. Holda
- 👤 John C. Lark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:26
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; C; C08; C08L; C08L67/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
A water-soluble polyester resin having a molecular weight of not more than about 4,000 and an acid number of at least 35 which comprises (1) a branched chain three-dimensional polyester core having an acid number less than about 25 comprising the reaction product of a polyhydroxyl compound, dicarboxylic acid compound, monocarboxylic acid compound and polycarboxylic acid compound having at least three acyl moieties, and (2) pendant carboxylic acid moieties comprising polycarboxylic acid compounds having at least three acyl moieties, wherein said polyester resin contains no non-benzenoid unsaturation and none of the hydroxy) compounds have secondary hydroxyl groups.
Claim 2
Dependent Claim
97 words
A water-soluble polyester resin having a molecular weight of not more than about 4,000 and an acid number of at least 35 which comprises (1) a branched chain three-dimensional polyester core having an acid number less than about 25 comprising the reaction product of a polyhydroxyl compound, dicarboxylic acid compound, monocarboxylic acid compound and polycarboxylic acid compound having at least three acyl moieties, and (2) pendant carboxylic acid moieties comprising polycarboxylic acid compounds having at least three acyl moieties, wherein said polyester resin contains no non-benzenoid unsaturation and none of the hydroxy) compounds have secondary hydroxyl groups.
Claim 3
Dependent Claim
34 words
The composition of claim 1, wherein the monocarboxylic acid contains at least six carbon atoms and comprises from 5 to 25 equivalent percent of the acyl groups in the backbone portion of the polyester.
Claim 4
Dependent Claim
19 words
The composition of claim 2, wherein said monocarboxylic acid contains on an average from 6 to 12 carbon atoms.
Claim 5
Dependent Claim
48 words
The composition of claim 2, wherein from 20 to 90 equivalent percent of the polycarboxylic acid having at least three acyl groups in the polyester are in the backbone portion of the polyester with from 10 to 80 equivalent percent in the pendant portion of the polyester resin.
Claim 6
Dependent Claim
31 words
The composition of claim 4, wherein the polycarboxylic acid having at least three acyl groups in both the backbone and pendant portions of the polyester resin comprises 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) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |