NOVEL PATHS TO POLYACRYLATES Russian patent published in 2016 - IPC C08F2/50 C08F20/18 

FIELD: chemistry.

SUBSTANCE: present invention relates to poly acrylate obtained through radical polymerisation of at least one acrylate monomer (Ac) in the presence of polymer photo initiator. Polymer photo initiator is copolymer of at least one monomer (A) with at least one monomer (B). Monomer (A) represents a photo initiator monomer (A) of formula (I), in which: Pi is photo initiating fragment representing benzophenone or tioxsantone; Z is linking fragment selected from-communication, optionally substituted C₁-C₁₂alkylene and optionally substituted -O-(C₁-C₁₂alkylene); X₁ and X₂ are independently selected from optionally substituted C₁-C₁₂alkylene; where Z, X₁ and X₂ are selected such that N is tertiary amine; W₁ and W₂ are functional alcohol groups. Monomer (B) contains at least two functional isocyanate groups W₃ and W₄, and W₁, W₂, W₃ and W₄ are selected so that copolymerisation of monomers (A) and (B) W₁ used with W₃ forming urethane fragment, and W₂ reacted with W₄ forming urethane fragment. Present invention also proposes method of producing poly acrylate using the described polymer photo initiator and application of polymer photo initiator as photo initiator for radical polymerisation of acrylic monomers.

EFFECT: reduced number or elimination of joint of reagents and catalysts during polymerisation.

28 cl, 4 dwg, 2 tbl, 7 ex