Abstract:
Crosslinkable compositions are provided that contain a) a polymeric material having at least two terminal dithiocarbamate groups or two terminal dithiocarbonate groups and b) a monomer composition that includes at least a crosslinking monomer having two or more ethylenically unsaturated groups. The polymeric materials in the crosslinkable compositions undergo chain extension and crosslinking reactions when exposed to actinic radiation in the ultraviolet region of the electromagnetic spectrum. Additionally, crosslinked compositions, articles that contain the crosslinkable compositions or the crosslinked compositions, and methods of making the articles are provided.
Abstract:
Controlled radical initiators, reaction mixtures containing the controlled radical initiators and various ethylenically unsaturated monomers, and polymeric materials formed from the reaction mixtures are provided. The controlled radical initiators are bis-dithiocarbamate or bis-dithiocarbonate compounds with a single carbon atom between the two dithiocarbamate or dithiocarbonate groups. Polymeric materials such as homopolymers, random copolymers, and block copolymers can be prepared using the controlled radical initiators.
Abstract:
Hydrocolloid compositions, wound dressings, methods of using such compositions and such wound dressings, and methods of forming such hydrocolloid compositions, wherein the hydrocolloid compositions include a hydrophobic, unsaturated, elastomeric polymer; a hydrocolloid absorbent; and a hydrophilic polymer including an unsaturated polymer backbone having polyalkylene ether groups bonded thereto.
Abstract:
An adhesive composition is described comprising a tackifier and at least one grafted isobutylene copolymer. The grafted isobutylene copolymer has the formula: R 1 -(R 2 -Z) wherein R 1 represents an isobutylene copolymer, R 2 is a covalent bond or multivalent alkylene or arylene, and Z is a grafted polymer. Z is typically a homopolymer of copolymer comprising alkene repeat units, aralkylene repeat units, or a combination thereof. Also described are adhesive coated articles, methods of making adhesive coated articles, and grafted isobutylene polymers.
Abstract:
An adhesive (co)polymers comprising: a) an isobutylene copolymer having pendent anhydride groups, b) a polyamine photobase generator and c) optionally a tackifier is described.
Abstract:
A curable composition comprises a phenolic resin and isocyanate-functionalized abrasive particles. The isocyanate-functionalized abrasive particles consist of the reaction product of at least one isocyanate-functional organosilane and abrasive particles. Abrasive articles and methods of making them using the isocyanate-functionalized abrasive particles are also disclosed.
Abstract:
Conformable coating composition are described comprising a (meth)acrylate copolymer comprising interpolymerized monomer units of fluorinated monomer and a volatile solvent having a solubility parameter from 4.9-12.5 (cal/cm 3 ) 1/2 . In some embodiments, the fluorinated monomer has a Tg
Abstract translation:描述了包含包含氟化单体的共聚单体单元和溶解度参数为4.9-12.5(cal / cm 3)1/2的挥发性溶剂的(甲基)丙烯酸酯共聚物的一致性涂料组合物。 在一些实施方案中,氟化单体的Tg <30℃。 在一些实施方案中,干燥的涂层在100%的伸长率下不显示阻塞和不大于75%的失效。 还描述了包含本文所述的涂料组合物的干燥涂料组合物的合适膜,包含基材上的适形膜层的制品和包含氟化单体的共聚单元,硅烷单体的共聚物; 和一种或多种Tg≥50℃的单体。
Abstract:
A polymerizable composition comprising a (meth)acrylate copolymer having pendent photoinitiator groups and a high T g monomer or macromer is described. The resulting copolymer is physically crosslinking and is of the formula I: (I).
Abstract:
An adhesion promoter coating composition includes an oligomeric alkylalkoxysiloxane and a compound comprising an electrophile moiety and an alkoxysilyl moiety. The electrophile moiety may contain a sulfide functional group, for example. A dust suppression coating composition includes an acrylic polymer comprising a quaternary ammonium moiety; and an oligomeric alkylalkoxysiloxane. The coating composition may further include a zirconium salt. The coating composition may be applied to roofing granules, and/or asphaltic compositions, among other things.
Abstract:
A medical sealant composition and method for coupling the medical article to skin using the medical sealant composition. The medical sealant composition can include an unsaturated rubber hydrocarbon having at least one hydrosilylation-crosslinkable functional group and a crosslinking agent having at least one SiH group per molecule. The medical sealant composition can cure at 35 degrees C in less than 20 minutes. The method can include applying the composition to one or both of a medical article and skin when the composition is in an uncured state; applying the medical article to the skin; and allowing the composition to cure to form a sealant between the medical article and the skin.