Benzophenone derivatives of formula (I) in which X is O, S or NR
3
, and R
3
is H or linear or branched C
1
-C
10
alkyl; R
1
is H or methyl, R
2
is H, halogen, linear or branched C
1
-C
10
alkoxy, linear or branched C
1
-C
10
alkyl, linear or branched C
1
-C
10
alkylthio or a group NR
4
R
5
, wherein R
4
and R
5
are independently linear or branched C
1
-C
10
alkyl, can be used as copolymerizable photoinitiators and photocrosslinkers.
UV-curable composition and pressure sensitive adhesive having breathability derived therefrom, as well as method for manufacturing the same
申请人:ICAP-SIRA S.p.A.
公开号:EP2878606A1
公开(公告)日:2015-06-03
The present invention relates to a polymerizable composition, comprising a polymerizable monomer of formula (I), a copolymerizable UV-initiator, at least one copolymerizable (meth)acrylic monomer:
R1-(OCH2CH2)n-L-OC(O)-CR2=CH2 Formula (I)
wherein R1 is hydrogen or a C1-C6 alkyl group, n is an integer from 1 to 100, L is a single bond or a divalent linking group, preferably a single bond or a C1-6 alkylene group, and R2 is hydrogen or a CH3 group; and
optionally (d) at least one copolymerizable non-acrylate monomer;
wherein the amount of the polymerizable monomer of formula (I) is between 2,5 and 40 % by weight of the total of all polymerizable monomers (a), (b), (c) and (d).
The invention also relates to a random copolymer obtained by reacting the polymerizable composition, a crosslinked product of the random copolymer and an adhesive composite material comprising the random copolymer or the crosslinked product on a substrate.
COMPOSITION USEFUL AS A PRESSURE SENSITIVE ADHESIVE, ITS USE AND ADHESIVE ARTICLES COMPRISING IT
申请人:IGM RESINS ITALIA S.R.L
公开号:US20210130520A1
公开(公告)日:2021-05-06
The present invention relates to a composition useful for manufacturing pressure sensitive adhesives, “PSAs”, and the use of said PSAs, especially in the medical field. The invention also relates to a method for manufacturing adhesive articles comprising the composition of the invention and to said articles. The invention is further directed to medical articles comprising the composition of the invention.