A polymerizable composition is described comprising a fluorinated monomer, oligomer, or mixture thereof; and a coupling agent comprising a (meth)acryl terminal group, a terminal silane comprising hydrolysable groups and a perfluorooxyalkylene or perfluorooxyalkyl moiety. Also described are compounds and methods.

A polymer (B) essentially contains units represented by the following formulas (1), (2) and (3), wherein the number of moles of unit (1) is 0 to 95, the number of moles of unit (2) is 0 to 50, and the number of moles of unit (3) is 2 to 80 when the total number of moles of units (1), (2) and (3) is 100:

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In units (1) to (3), “X” is a recurring unit having a benzene ring, in unit (2), —CH.sub.3 is substituted on the benzene ring, “m” is an integer of 1-6, unit (3) is obtained by substituting a hydrogen of —CH.sub.3 in unit (2) by a substituent “Z” derived from a carboxylic acid or anhydride thereof, “n” is an integer of 1-6 indicative of the number of substitutions, l+n=m, and unit (3) is a unit in which “n” is an integer of 1-6 or a combination thereof.

The thermoplastic elastomer composition contains a thermoplastic elastomer and a pigment.

Hydrogels that degrade under appropriate conditions of pH and temperature by virtue of crosslinking compounds that cleave through an elimination reaction are described. The hydrogels may be used for delivery of various agents, such as pharmaceuticals.

Disclosed are a polypropylene resin composition and a molded article including the same. The polypropylene resin composition may include a polypropylene resin, glass fiber, a non-halogen flame retardant, a compatibilizer, and sodium salt ionomer such that the resin composition may provide substantially improved mechanical properties such as tensile strength, impact strength, and flexural modulus, and excellent flame retardancy and flame retardant stability over time.

Methods and hydrogels for preventing or reducing cellular adhesion and protein adsorption to a tissue (e.g. cardiac tissue) are disclosed. The hydrogels generally include at least two component polymers, a first polymer including an aminooxy group and a second polymer including a reactive oxo group, that are cross-linked by oxime bonds. The hydrogels are suitable for binding to and coating a tissue or cell. The hydrogels operate to reduce cellular adhesions and protein adsorption to the tissue or cell.

A rubber additive composition may be capable of producing a rubber composition having well-balanced strength. Such rubber additive compositions may include: (A) anion-modified cellulose and (B) a hydrophobizing agent, wherein the hydrophobizing agent (B) includes at least one selected from the group consisting of (B1) a polyether amine having a primary amino group at an end of a polyether skeleton and (B2) an amine compound having a hydrocarbon group with a carbon number of 3 to 50 or a quaternary ammonium salt having a hydrocarbon group with a carbon number of 3 to 50.

A polyimide precursor-containing aqueous composition contains at least one polymer material selected from the group consisting of a water-insoluble fibrous organic substance and a polyalkylene oxide having a viscosity-average molecular weight of 5 million or more, a polyimide precursor, particles, and water.

The present invention provides crosslinking pairs of hydrogel precursor polymers, dynamic covalent hydrogels prepared from such crosslinking pairs of hydrogel precursors, pharmaceutical compositions comprising such precursors or hydrogels and uses thereof in a variety of applications.

The invention features oligofluorinated cross-linked polymers and their use in the manufacture of articles and coating surfaces.