Patent EP0185493B1 successfully refreshed from Google Patents.
EP0185493B1
Expired / Lapsed
EP
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Imidazolinone-containing polymers and copolymers
Assignee: 3M Co
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Filing: 1985-12-06
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Granted: 1993-07-28
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Expires: 2005-12-06
Abstract
No abstract record available.
Inventors
- 👤 Jerald K. Minnesota Mining And Rasmussen
- 👤 Alan R. Minnesota Mining And Katritzky
- 👤 Larry R. Minnesota Mining And Krepski
- 👤 Howell K. Minnesota Mining And Smith Ii
- 👤 Steven M. Minnesota Mining And Heilmann
- 👤 Kumars Minnesota Mining And Sakizadeh
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 03:12
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0605; C08G73/0616; C08F; C08F220/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
195 words
A polymer comprising 100 mole percent of 2-imidazolin-5-one units having formula I wherein R¹ and R² independently represent an alkyl group of 1 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, or R¹ and R² taken together with the carbon atom to which they are attached form a 5- to 12-membered carbocyclic ring; R³ is a divalent organic group having a number average molecular weight of up to 20,000 selected from (1) a hydrocarbyl group having 2 to 20 carbon atoms, (2) polyoxyalkylene, (3) polyamide, (4) polyester, (5) polyolefin, (6) polyacrylate, and (7) polysiloxane groups; and R⁴ is a divalent organic group selected from wherein R¹ and R² are as previously defined, X is -O-, or -S-, and R is hydrogen or an alkyl group of 1 to 12 carbon atoms, or an aryl group of 6 to 12 carbon atoms and R⁵ is a divalent organic group having a number average molecular weight up to 20,000 selected from (1) a hydrocarbyl group having 2 to 20 carbon atoms, (2) polyoxyalkylene, (3) polyester, (4) polyolefin, (5) polyacrylate, and (6) polysiloxane groups
Claim 2
Dependent Claim
75 words
A copolymer comprising a. at least 0.5 mole percent of the unit of formula I as claimed in claim 1; and b. not more than 99.5 mole percent of other units derived from condensation type monomers wherein the comonomer is selected from the group consisting of dicarboxylic acids, diols, hydroxyacids and lactones, di secondary diamines, secondary aminoalcohols, secondary amino acids and the corresponding lactams, tetracarboxylic acid dianhydrides, tricarboxylic acid anhydrides and diisocyanates and polyester diols.
Claim 3
Dependent Claim
23 words
The polymer or the copolymer according to any preceding claim wherein R¹ and R² are each methyl or together form a pentamethylene group.
Claim 4
Dependent Claim
63 words
The polymer or the copolymer according to any preceding claim wherein R³ is independently selected from alkylene, alkylene imine, and arylene, such that when R³ is an alkylene group having 2 to 20 carbon atoms or an arylene group having 6 to 20 carbon atoms, said groups are optionally interrupted by one to five catenary heteroatoms selected from oxygen, nitrogen, silicon or sulfur.
Claim 5
Dependent Claim
27 words
The copolymer according to any one of claims 2-5 for use when dissolved or dispersed in water for the chelation of metal ions and for water clarification.
Claim 6
Dependent Claim
21 words
The copolymer according to any one of claims 2-5 for use for paper and fabric sizing and as an optical brightener.
Claim 7
Independent Claim
310 words
A method for preparing the polymer or the copolymer according to any preceding claim comprising the steps of (a) reacting (1) at least one azlactone-functional compound of the formula III wherein R¹ and R² independently represent an alkyl group of 1 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, or R¹ and R² taken together with the carbon atom to which they are attached form a 5- to 12-membered carbocyclic ring, R⁶ is where Y is HO-, R⁷0-, or CH₃C00-, R⁷ is lower alkyl of 1-4 carbon atoms, phenyl or phenyl substituted by at least one non-nucleophilic group, and R⁵ is a divalent organic group having a number average molecular weight up to 20,000 selected from (1) a hydrocarbyl group having 2 to 20 carbon atoms, and (2) polyoxyalkylene, (3) polyester, (4) polyolefin, (5) polyacrylate, and (6) polysiloxane groups; (2) and optionally at least one condensation comonomer wherein said comonomer is selected from the group consisting of dicarboxylic acids, diols, hydroxyacids and lactones, di secondary diamines, secondary aminoalcohols, secondary amino acids and the corresponding lactams, tetracarboxylic acid dianhydrides, tricarboxylic acid anhydrides and diisocyanates and polyester diols. (3) with at least one nucleophilic group-substituted amine to provide a polyamide, said amine having formula II H₂N-R³-XH wherein X is -O-, or -S-, and R is hydrogen or an alkyl group of 1 to 12 carbon atoms or an aryl group of 6 to 11 carbon atoms, and R³ having a number average molecular weight of up to 20,000 and is selected from (1) a hydrocarbyl group having 2 to 20 carbon atoms, and (2) polyoxyalkylene, (3) polyamide, (4) polyester, (5) polyolefin, (6) polyacrylate and (7) polysiloxane groups; and (b) thermally treating said resulting polyamide in the presence of a dehydration catalyst to provide said polymer comprising 2-imidazolin-6-one units.
References Cited (Backward Citations)
No citation records indexed.
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