US3875101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latex for paper coating utilizing butadiene-styrene-acrylic acid-acrolein tetrapolymers
Assignee: BASF SE
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Filing: 1971-12-03
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Granted: 1975-04-01
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Expires: 1991-12-03
Abstract
Abstract An improved carboxylic latex is produced by copolymerizing e.g. butadiene, styrene, acrylic acid and acrolein in an emulsion system comprising a synthetic emulsifier. The latex is suitable for treating fibrous materials e.g. textile and paper.
Inventors
- 👤 Alastair Cameron Macleod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:49
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B15/092; C; C08; C08F; C08F20/00; C08F20/62; B32B15/18; C08F236/00; C08F236/02; C08F236/04; C08L; C08L13/00; C08L13/02; C08L21/00; C08L21/02; C08L25/00; D; D06; D06M; D06M15/00; D06M15/693; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; D21H19/36; D21H19/44; D21H19/56; D21H19/58; B32B2255/00; B32B2255/26; B32B2262/00; B32B2262/10; B32B2262/106; B32B2311/00; B32B2311/30; C08L3/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
131 words
AN AQUEOUS LATEX COMPOSITION SUITABLE FOR USE IN TREATING FIBROUS MATERIALS WHICH COMPRISES A DISPERSION IN AN AQUEOUS SOLUTION OF A SYNTHETIC EMULSIFIER OF A POLYMER CONSISTING OF COPOLYMERIZED MONOMERIC UNITS OF (A) AT LEAST ABOUT 25 PARTS OF AN ACYLIC CONJUGATED DIOLEFIN, (B) AT LEAST ABOUT 25 PARTS OF A NONO-OLEFINICALY UNSATURATD COPOLYMERIZABLE COMPOUND, SAID COMPOUND BEING FREE OF CARBONYL AND CARBOXYL ACID GROUPS, (C) FROM 1 TO ABOUT 3 PARTS OF AN OLEFINICALLY UNSATURATED CARBOXYLIC ACID AND (D) FROM 1 TO ABOUT 3 PARTS OF AN OLEFINICALLY UNSATURATED CARBONYL COMPOUND OF THE GENERAL FORMULA H(R1)C=(R2)-C(R3)O WHERE R1 IS A HYDROGEN OR A C1-C6 MONOVALENT HYDROCARBON RADICAL AND R2 AND R3 ARE HYDROGEN OR C1-C2 ALKYL RADICALS, SAID PARTS BEING PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF POLYMER.
Claim 2
Dependent Claim
131 words
AN AQUEOUS LATEX COMPOSITION SUITABLE FOR USE IN TREATING FIBROUS MATERIALS WHICH COMPRISES A DISPERSION IN AN AQUEOUS SOLUTION OF A SYNTHETIC EMULSIFIER OF A POLYMER CONSISTING OF COPOLYMERIZED MONOMERIC UNITS OF (A) AT LEAST ABOUT 25 PARTS OF AN ACYLIC CONJUGATED DIOLEFIN, (B) AT LEAST ABOUT 25 PARTS OF A NONO-OLEFINICALY UNSATURATD COPOLYMERIZABLE COMPOUND, SAID COMPOUND BEING FREE OF CARBONYL AND CARBOXYL ACID GROUPS, (C) FROM 1 TO ABOUT 3 PARTS OF AN OLEFINICALLY UNSATURATED CARBOXYLIC ACID AND (D) FROM 1 TO ABOUT 3 PARTS OF AN OLEFINICALLY UNSATURATED CARBONYL COMPOUND OF THE GENERAL FORMULA H(R1)C=(R2)-C(R3)O WHERE R1 IS A HYDROGEN OR A C1-C6 MONOVALENT HYDROCARBON RADICAL AND R2 AND R3 ARE HYDROGEN OR C1-C2 ALKYL RADICALS, SAID PARTS BEING PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF POLYMER.
Claim 3
Dependent Claim
76 words
The latex composition of claim 1 wherein the polymer consists of copolymerized monomeric units of (a) from about 25 to about 45 parts of said conjugated diolefin, (b) from about 50 to about 70 parts of said mono-olefinically unsaturated compound, (c) about 1-3 parts of said olefinically unsaturated carboxylic acid and (d) about 1-3 parts of said olefinically unsaturated carbonyl compound, the ratio of said carboxylic acid to said carbonyl compound being between 3:1 and 1:3.
Claim 4
Dependent Claim
36 words
The latex composition of claim 1 wherein the synthetic emulsifier is an alkali metal salt of a sulfosuccinic acid ester used in an amount of 0.5 to about 6 parts per 100 parts of monomer mixture.
Claim 5
Dependent Claim
75 words
The latex composition of claim 2 wherein the diolefin (a) is butadiene-1,3, the mono-olefinic compound (b) is selected from the group consisting of styrene, Alpha -methylstyrene, Alpha -chlorostyrene, vinyl toluene and mixtures thereof, the olefinically unsaturated carboxylic acid (c) is selected from the group consisting of acrylic, methacrylic, ethacrylic, itaconic and cinnamic acids, and mixtures thereof and the olefinically unsaturated carbonyl compound is selected from Alpha -methyl acrolein, Beta -methyl acrolein and Beta -phenyl acrolein.
Claim 6
Dependent Claim
22 words
The latex composition of claim 4 wherein the polymer comprises copolymerized monomeric units of butadiene-1,3, styrene, acrylic acid, itaconic acid and acrolein.
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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |