摘要:
Polymeric compositions are provided that include a furan 2,5-di-ester or tetrahydrofuran 2,5-di-ester plasticizer. The plasticizer has low odor, has good compatibility with a variety of polymers such as hydrophilic polymeric materials, and can be formed from renewable resources. Further, the plasticizer can be used at temperatures often encountered during hot melt processing of polymeric compositions.
摘要:
A pressure-sensitive adhesive is provided including an emulsion polymer containing a (meth)acrylate copolymer and nanocrystalline cellulose. The inclusion of the nanocrystalline cellulose results in an increase in the overlap shear properties of the adhesive while maintaining the peel adhesion. Articles and emulsions including the pressure-sensitive adhesive are also provided.
摘要:
Pressure sensitive adhesive compositions are described comprising polymerized units derived from alkyl (meth)acrylate monomer(s) and a crosslinking monomer comprising at least two terminal groups selected from allyl, methallyl, or combinations thereof. In one embodiment, the pressure sensitive adhesive composition is a syrup or the reaction product of a syrup comprising i) a free-radically polymerizable solvent monomer; and ii) a solute (meth)acrylic polymer The syrup or the (meth)acrylic solute polymer comprises polymerized units derived from the cross-linking monomer. Also described are pressure sensitive adhesive articles and methods.
摘要:
A film is described comprising a (meth)acrylic polymer and a polyvinyl acetal (e.g. butyral) resin. In some embodiments, the film has a glass transition temperature (i.e. Tg) ranging from 30° C. to 60° C. In some embodiments, the film has a gel content of at least 20% or greater. In some embodiments, the film has an elongation at break of at least 175%. The film typically comprises photoinitiator as a result of the method by which the film was made. The film may be a monolithic film or a layer of a multilayer film.
摘要:
Polymeric compositions are provided that include a furan 2,5-di-ester or tetrahydrofuran 2,5-di-ester plasticizer. The plasticizer has low odor, has good compatibility with a variety of polymers such as hydrophilic polymeric materials, and can be formed from renewable resources. Further, the plasticizer can be used at temperatures often encountered during hot melt processing of polymeric compositions.
摘要:
Bisanhydrohexitol derivatives having terminal mercapto groups are provided. Additionally, curable compositions that include these mercapto-containing bisanhydrohexitol derivatives, cured compositions prepared from the curable compositions, and articles containing the cured compositions are provided. More specifically, the curable compositions are epoxy-based formulations and the mercapto-containing bisanhydrohexitol derivatives function as curing agents for epoxy resins.
摘要:
This disclosure relates to viscoelastic damping materials and constructions which may demonstrate low temperature performance and adhesion and which may be used in making vibration damping composites. Viscoelastic damping materials and constructions may include polymers or copolymers of monomers according to formula I: CH2═CHR1—COOR2 [I] wherein R1 is H, CH3 or CH2CH3 and R2 is a branched alkyl group containing 12 to 32 carbon atoms.
摘要:
A multifunctional polymerizable ionic liquid is described comprising an anion and a cationic group having at least two ethylenically unsaturated polymerizable groups, each bonded to the cationic group via a divalent non-alkyl linking group. The multifunctional linking groups independently comprise a heteroatom such as oxygen or nitrogen. The linking groups may independently comprise one or more linkages such as an amide, urea, and more typically a urethane or ester linkage. The ethylenically unsaturated polymerizable groups are typically (meth)acrylate groups. Coatings and coated articles are also described.