US4356288A
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US
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Novel polymers of alkyl acrylates
Assignee: Rohm and Haas Co
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Filing: 1980-05-19
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Granted: 1982-10-26
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Expires: 2000-05-19
Abstract
Abstract Polymers of esters of acrylic acid having an average chain length of about 6 to about 30 mers are prepared by an anionic polymerization reaction, carried out in the presence of a catalytic amount of an alkoxide anion. These polymers, their hydrolysis products, and their derivatives have a wide variety of applications, including among others use as components in films, coatings, fibers, impregnants, adhesives, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.
Inventors
- 👤 Sheldon N. Lewis
- 👤 Richard A. Haggard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:22
CPC Classifications
C; C08; C08F; C08F290/00; C08F290/02; C08F290/04; C08F8/00; C08F8/12; C08F8/14; C08F8/30; C08F8/44; C08F2810/00; C08F2810/30
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
59 words
A process for preparing a free radical polymerized polymer which comprises the steps of preparing an alkoxide-polymerized addition polymer of at least one ester of acrylic acid wherein the average chain length of the polymer, n, is about 6 to about 30 mers and reacting the alkoxide polymerized polymer with an ethylenically unsaturated monomer under free radical polymerization conditions.
Claim 2
Dependent Claim
59 words
A process for preparing a free radical polymerized polymer which comprises the steps of preparing an alkoxide-polymerized addition polymer of at least one ester of acrylic acid wherein the average chain length of the polymer, n, is about 6 to about 30 mers and reacting the alkoxide polymerized polymer with an ethylenically unsaturated monomer under free radical polymerization conditions.
Claim 3
Dependent Claim
30 words
The process of claim 1 wherein at least about 80% by weight of the alkoxide-polymerized polymer consists of molecules having chain lengths of about n/3 to about 3.3 n mers.
Claim 4
Dependent Claim
13 words
The process of claim 2 wherein n is about 6 to about 20.
Claim 5
Dependent Claim
218 words
A process of claim 2 wherein the alkoxide-polymerized polymer corresponds to the formula ##STR10## wherein Y and Y' are individually halogen, amino, (C 1 -C 4 )alkylamino, hydroxy(C 1 -C 4 )alkylamino, bishydroxy(C 1 -C 4 )alkylamino, (C 1 -C 4 )alkoxy(C 1 -C 4 )alkylamino, bis(C 1 -C 4 )alkoxy(C 1 -C 4 )alkylamino, or OR; wherein R is hydrogen, (C 1 -C 8 )aminoalkyl, (C 1 -C 4 )alkylamino(C 1 -C 8 )alkyl, (C 2 -C 8 )isocyanatoalkyl, (C 2 -C 8 )hydroxyalkyl, 1,3-oxazolidin-3-yl(C 2 -C 4 )alkyl, optionally having up to two (C 1 -C 4 )alkyl substituents on the oxazolidinyl ring, (C 1 -C 8 )aldimino(C 2 -C 6 )alkyl, (C 1 -C 8 )aldimino(C 2 -C 6 )alkoxyalkyl, the aldimino structures optionally containing halogen, (C 3 -C 13 )ketimino(C 2 -C 6 )alkyl, (C 3 -C 13 )ketimino(C 2 -C 6 )alkoxyalkyl, 1,3-dioxolan-4-yl(C 2 -C 4 )alkyl, optionally having up to two (C 1 -C 8 )hydrocarbon substituents on the dioxolanyl ring, epoxy(C 2 -C 4 )alkyl di(C 1 -C 4 )alkyl ammonium-(C 2 -C 4 )alkyl, (C 2 -C 8 )epoxy alkyl, 3-chloro-2-hydroxypropyldimethylammoniumethyl, 3-chloro-2-hydroxypropyl, or sodium, potassium, or ammonium cation; and wherein n' and n" are integers of 0 to 89, wherein the sum of n' and n" is 2 to 89.
Claim 6
Dependent Claim
19 words
The process of claim 4 wherein the alkoxide-polymerized polymer also comprises mers of (C 1 -C 24 )alkyl acrylate.
Claim 7
Dependent Claim
21 words
The process of claim 5 wherein Y and Y' are individually OR wherein R is (C 2 -C 8 ) hydroxyalkyl.
Claim 8
Dependent Claim
18 words
The process of claim 5 wherein Y and Y' are individually OR wherein R is 1,3-oxazolidinylethyl or 2-alkyl-1,3-oxazolidinylethyl.
Claim 9
Dependent Claim
16 words
The process of claim 5 wherein Y and Y' are individually OR wherein R is hydrogen.
Claim 10
Dependent Claim
21 words
The process of claim 8 wherein Y and Y' are individually OR wherein R is (C 2 -C 8 ) hydroxyalkyl.
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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) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |