公开(公告)号：US11485699B2

公开(公告)日：2022-11-01

申请号：US16314966

申请日：2017-07-06

申请人： Synthomer Adhesive Technologies LLC

发明人： Christopher Lee Lester ,  Sarah Exley Goetz ,  Timothy Harold Blayney ,  Gabrielle Rose Ashley ,  Mark Stanley Pavlin ,  Douglas Grant Atkins ,  Zhufang Liu

IPC分类号： C07C67/465 ,  C09J133/06 ,  C07C69/54 ,  C07C67/00 ,  C09J133/08 ,  C08F120/14 ,  C08F120/18 ,  C08F120/20 ,  C08F2/38 ,  C08F8/04 ,  C08F220/18

摘要： The invention provides (meth)acrylic oligomers prepared from C1-C20 alkyl and C5-C20 cycloalkyl (meth)acrylates, wherein said oligomers have a Mn of about 300 g/mole to about 3,000 g/mole; a Mw of about 700 g/mole to about 6,000 g/mole; a Mz of about 900 g/mole to about 10,000 g/mole. The oligomers may have a Yellowness Index, according to ASTM E313 of less than 2. The oligomers of the invention are useful as tackifiers in adhesive compositions, but also are believed to be useful also in general polymer modification as plasticizers, leveling agents, viscosity reducers (i.e., rheology modifiers), and for increasing solids content in solvent-borne applications of all types with little detrimental impact on viscosity. The invention also provides adhesive compositions and laminate articles coated on at least one side with the adhesive compositions of the invention.