Acrylic polyols comprising hydroxy functional acrylic copolymers/resin involving an acrylic backbone having modified castor oil sourced hydroxyl functionalities and synthesized by co-reacting modified hydroxy functional Castor Oil with variety of acrylic monomers, styrene or its derivatives and optionally hydroxyalkyl acrylates/methacrylates and ethylenic monomer through solution polymerization in presence of an initiator. The hydroxyl functionality is solely or partially imparted through renewable Castor Oil wherein the resins were synthesized at upto 100% solids and at hydroxyl values ranging from 25-150 (mg KOH/gm). The synthesized resins when cured with suitable polyisocyanates or amino resin cross-linkers provided tough, glossy and chemical & weather resistant coatings.

This invention relates to a process for making phenolic fatty acid compounds having a reduced phenolic ester content. The invention also relates to method for chemically bonding a phenolic resin with a non-phenolic polymer (e.g., a synthetic fabric). The method comprises contacting a phenolic fatty acid compound with a non-phenolic polymer to introduce a hydroxy phenyl functional group into the non-phenolic polymer; and reacting the hydroxy phenyl functional group contained in the non-phenolic polymer with a phenolic resin or a phenolic crosslinker composition capable of forming a phenolic resin, to chemically bond the phenolic resin with the non-phenolic polymer. The invention is particularly useful for making a synthetic fabric-reinforced article, such as synthetic fabric-reinforced rubber article, circuit board substrate, or fiberglass.

A polysulfone membrane is modified so that monomers are grafted onto the surface of the membrane. The polysulfone membranes can be grafted by contacting the membrane with a grafting solution and exposing the membrane to electromagnetic radiation, typically within the ultraviolet portion of the spectrum. The monomers that are grafted are typically anionic or cationic. The grafted membranes can be used for filtering impurities, such as positively and negatively charged particles, from a liquid. Anionic membranes provide improved filtration of negatively charged impurities, while cationic membranes provide improved filtration of positively charged impurities.

Described herein, inter alia, are compositions and methods for using polymeric micellar nanoparticles for nuclear magnetic resonance imaging in a subject in need thereof.

There is provided a method of production of a conjugated diene rubber comprising a first step of polymerizing a monomer containing a conjugated diene compound in an inert solvent using a polymerization initiator so as to obtain a conjugated diene polymer chain having an active end, a second step of reacting siloxane with the conjugated diene polymer chain having an active end, and a third step of reacting a compound represented by the following general formula (1) with the conjugated diene polymer chain with which siloxane was reacted obtained in the second step:

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wherein, in the general formula (1), X.sup.1 represents a functional group selected from a hydrocarbyloxy group, halogen group, and hydroxyl group, R.sup.1 represents a substituted or unsubstituted hydrocarbon group, R.sup.2 and R.sup.3 respectively independently represent a substituted or unsubstituted hydrocarbon group, R.sup.2 and R.sup.3 may bond with each other to foam a ring structure together with the nitrogen atom to which they are bound, when foaming the ring structure they may form a ring structure together with a hetero atom other than the nitrogen atom to which they are bound in addition to the nitrogen atom to which they are bound, r is an integer of 0 to 2.

The resin composition of the present invention comprises a prepolymer (P) and a thermosetting component, the prepolymer (P) being obtained by polymerizing an alkenyl-substituted nadimide (A), a maleimide compound (B), and an amino-modified silicone (C).

Antimicrobial polymers, composition including the polymers, and methods of forming and using the polymers and compositions are disclosed. The compositions have reverse thermal gelling properties and transform from a liquid to a gele.g., near or below body temperature, such as a skin temperature in an operating room. The polymers and compositions can be applied to a surface, such as a surface of skin proximate an incision site prior to surgery, to provide a relatively sterile area near the site.

New polymer compositions based on poly(2,6-dimethyl-1,4-phenylene oxide) and other high-softening-temperature polymers are disclosed. These materials have a microphase domain structure that has an ionically-conductive phase and a phase with good mechanical strength and a high softening temperature. In one arrangement, the structural block has a softening temperature of about 210 C. These materials can be made with either homopolymers or with block copolymers.

An aminoacrylate-acrylate urethane comprises at least one urethane function bonded to an aminoacrylate group, this group having a plurality of acrylate groups and being derived from the reaction of a) a hydroxylated aminoacrylate bearing one or more acrylate groups with b) a polyisocyanate. The aminoacrylate a) is produced by the addition of a1) an amino alcohol bearing a hydroxyl group and a secondary amine group to a2) at least one multifunctional acrylate, with a2) being in stoichiometric excess relative to the secondary amine groups of said amino alcohol a1).

A method for preparing the urethane acrylate comprises preparing the aminoacrylate a) by a Michael addition reaction. The aminoacrylate-acrylate urethane may be used in curable compositions, more particularly as a synergist, and also to cured finished products from the urethane acrylate.

Alternating crystalline-amorphous polyolefin based multiblock copolymer compositions and methods for producing these multiblock copolymer compositions are disclosed. Also disclosed is the use of these multiblock copolymer compositions as additives to high density polyethylene (HDPE) resins in order to form polymer blends having improved ductility and toughness over that of the HDPE resins while retaining high mechanical strength, and the use of these polymer blends in films.