公开(公告)号：US20240352172A1

公开(公告)日：2024-10-24

申请号：US18686003

申请日：2022-08-17

申请人： EVONIK OPERATIONS GMBH

发明人： Yili WU ,  Erwin PENG ,  Soumya SARKAR ,  Ma Monica Carlos DELA CRUZ ,  Christel GOH ,  Shao Wen NG ,  Dinesh Kumar BASKER

IPC分类号： C08F290/06 ,  B33Y70/00

CPC分类号： C08F290/067 ,  B33Y70/00

摘要： A liquid radiation curable composition comprising component a) 20 to 60 weight percent of one or more reactive oligomer(s) containing at least two urethane and/or urea linkages in the backbone and at least two ethylenic unsaturated group(s) which can form polymeric crosslink networks with the other components in the composition in the presence of radicals, anions, nucleophiles or combinations thereof, with a weight average molecular weight (Mw) of greater than 3000 g/mol and glass transition temperature Tg of the cured reactive oligomer(s) itself is greater than 25° C., component b) 20 to 60 weight percent of one or more reactive oligomer(s) containing at least two urethane and/or urea linkages in the backbone and at least two ethylenic unsaturated group(s) which can form multiple polymeric crosslink networks with the other components in the composition in the presence of radicals, anions, nucleophiles or combinations thereof and with component b) having a weight average molecular weight (Mw) average of 1000 g/mol or less and a glass transition temperature Tg of the cured reactive oligomer(s) is greater than 130° C., component c) 20 to 60 weight percent of one or more reactive monomer(s) containing at least one ethylenic unsaturated group capable of forming polymeric crosslinked networks with the other components in the composition in the presence of radicals, anions, nucleophiles or combinations thereof, the said reactive monomer(s) having at least one polar group and the glass transition temperature Tg of the cured monomer(s) is greater than 50° C., component d) 0.01 to 10 weight percent of one or more photoinitiator(s) capable of producing radicals when irradiated with actinic radiation, component e) 0.01 to 30 weight percent of one or more additive(s) selected from the group consisting of filler(s), pigment(s), dispersant(s), defoamer(s), antioxidant(s), light stabilizer(s), light absorber(s) or radical inhibitor(s), with the provision that the liquid radiation curable composition has a viscosity of no more than 10000 mPa.s at 25° C.

公开(公告)号：US20240318007A1

公开(公告)日：2024-09-26

申请号：US18272582

申请日：2022-01-17

申请人： EVONIK OPERATIONS GMBH

发明人： Yili WU ,  Erwin PENG ,  Soumya SARKAR ,  Dinesh Kumar BASKER ,  Peter ALTENBUCHNER ,  Ma Monica Carlos DELA CRUZ

IPC分类号： C09D4/00 ,  B29C64/112 ,  B29C64/30 ,  B29K67/00 ,  B29K75/00 ,  B29K105/00 ,  B29K105/16 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  C08F220/18 ,  C08F220/28 ,  C08F222/10 ,  C09D133/06 ,  C09D133/14 ,  C09D135/02

CPC分类号： C09D4/00 ,  B33Y70/00 ,  C08F220/1809 ,  C08F220/281 ,  C08F220/282 ,  C08F222/1061 ,  C09D133/062 ,  C09D133/14 ,  C09D135/02 ,  B29C64/112 ,  B29C64/30 ,  B29K2023/04 ,  B29K2067/00 ,  B29K2075/00 ,  B29K2105/0002 ,  B29K2105/0088 ,  B29K2105/0094 ,  B29K2105/16 ,  B29K2995/0077 ,  B29K2995/0089 ,  B33Y10/00 ,  B33Y40/20

摘要： A liquid, radiation curable composition with a viscosity of 4000 cps or lower comprising component a) 20 to 60 weight percent of one or more oligomer(s), pre-polymer(s) or polymer(s) containing a plurality of ester linkages in the backbone, at least one or more urethane groups and at least two ethylenic unsaturated groups which can form polymeric crosslink networks with the other components in the composition in the presence of radicals, anions, nucleophiles or combination thereof, component b) 30 to 90 weight percent of one or more monomer(s) containing one ethylenic unsaturated group capable of forming polymeric crosslink networks with the other components in the composition in presence of radicals, anions, nucleophiles or combination thereof, component c) 0.01 to 10 weight percent of one or more photoinitiator(s) capable of producing radicals when irradiated with actinic radiation and component d) 0 to 40 weight percent of one or more additive(s) selected from the group consisting of filler(s), pigment(s), thermal stabilizer(s), UV light stabilizer(s), UV light absorber(s), radical inhibitor(s) or oligomer(s) as processing aid, said oligomers are different from the oligomers in component a).