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US 11,548,972 B2Granted
Oligomer or polymer and composition comprising the same
AssigneePerstorp AB
InventorsStefan Lundmark, Pia Wennerberg, David James
Life of this patent
Estimating the term…
Abstract
Disclosed is an oligomer or polymer obtained by reacting at least one monomeric, oligomeric or polymeric isocyanate having two or more isocyanate groups with 2-hydroxy-3-butenoic acid and/or at least one alkyl ester of 2-hydroxy-3-butenoic acid. A composition comprising a said oligomer or polymer is also disclosed.
Claims20
An oligomer or polymer obtained by the method comprising:
- (a) reacting at least one isocyanate having two or more isocyanate groups with a 2-hydroxy-3-butenoic acid, an alkyl ester of 2-hydroxy-3-butenoic acid, or a combination thereof, wherein the isocyanate is monomeric, oligomeric, or polymeric.
A composition comprising:
- (a) an oligomer or a polymer, the oligomer or the polymer formed from an isocyanate having two or more isocyanate groups being reacted with a 2-hydroxy-3-butenoic acid, an alkyl ester of 2-hydroxy-3-butenoic acid, or a combination thereof, wherein the isocyanate is monomeric, oligomeric, or polymeric.
A method for using oligomers and polymers from 2-hydroxy-3-butenoic acid and its esters reacted with isocyanates, the method comprising:
- (a) producing an oligomer or a polymer by reacting an isocyanate having two or more isocyanate groups with a 2-hydroxy-3-butenoic acid, an alkyl ester of 2-hydroxy-3-butenoic acid, or a combination thereof, wherein the isocyanate is monomeric, oligomeric, or polymeric;
- (b) preparing a composition comprising the oligomer or the polymer of (a);
- and
- (c) incorporating the composition of (b) in at least one of wood coatings, metal coatings, plastic coatings, textile coatings, paper coatings, flexo and digital inks, 3D printing, graphic arts, adhesives, medical and dental applications and devices, absorbents, sanitary articles, packaging, electronic and electric applications and devices, and/or optical application and devices.
1 more element
Dependencies are inferred from the claim text.