Polyacrylate blends comprising a copolymerized photoinitiator
AssigneeTesa SE
InventorsMarc Husemann, Stephan Zöllner
Life of this patent
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Abstract
A method of reducing the flow viscosity of a polyacrylate composition, which comprises adding a) to a polyacrylate, a polyacrylate copolymer, a polyacrylate mixture or a mixture of polyacrylates and polyacrylate copolymers having an average molecular weight of more than 500000 g/mol b) a polyacrylate, a polyacrylate copolymer, a polyacrylate mixture or a mixture of polyacrylates and polyacrylate copolymers having an average molecular weight of less than 500000 g/mol, component (b) possessing functional groups crosslinkable by UV irradiation.
Claims22
A method of preparing a polymer blend, said method comprising:
- a) providing a first polyacrylate component having an average molecular weight of more than 500,000 g/mol, said first polyacrylate component being selected from the group consisting of polyacrylates, polyacrylate copolymers, polyacrylate mixtures, and mixtures of polyacrylates and polyacrylate copolymers;
- and
- b) adding a second polyacrylate component having an average molecular weight of less than 500,000 g/mol to said first polyacrylate component to reduce the flow viscosity of said first polyacrylate component, said second polyacrylate component possessing copolymerized photoinitiator functional groups crosslinkable by ultraviolet irradiation, and said second polyacrylate component being selected from the group consisting of polyacrylates, polyacrylate copolymers, polyacrylate mixtures, and mixtures of polyacrylates and polyacrylate copolymers.
A polymer blend comprising:
- a) a first polyacrylate component having an average molecular weight of more than 500,000 g/mol, said first polyacrylate component being selected from the group consisting of polyacrylates, polyacrylate copolymers, polyacrylate mixtures, and mixtures of polyacrylates and polyacrylate copolymers;
- and
- b) a second polyacrylate component having an average molecular weight of less than 500,000 g/mol in an amount effective to reduce the flow viscosity of said first polyacrylate component, said second polyacrylate component possessing copolymerized photoinitiator functional groups crosslinkable by ultraviolet irradiation, and said second polyacrylate component being selected from the group consisting of polyacrylates, polyacrylate copolymers, polyacrylate mixtures, and mixtures of polyacrylates and polyacrylate copolymers.
Dependencies are inferred from the claim text.