摘要:
(Meth)acrylic/glutarimide copolymers, well suited, e.g., for optical applications, having enhanced glass transition temperatures (Tg), are prepared by salifying the acid functions of (meth)acrylic ester/(meth)acrylic acid copolymers, and then imidifying such "intermediate" salified copolymers into the subject (meth)acrylic/glutarimide polymers.
摘要:
A product for forming a coating on a support, in particular a protective coating against corrosion, photonic degradation and/or against gas penetration, comprising a halogenated polymer and/or copolymer activated by at least one peroxide and/or hydroperoxide function to which at least one phosphonated chain is attached.
摘要:
A polymer material of the fluorine-containing polyurethane acrylate type for coating an optical fiber or for an optical fiber tape, the material being based on at least a diol, a diisocyanate, and an acrylate, and being characterized by the fact that at least one of the above compounds contains fluorine and that at least one of the above compounds contains sulfur.
摘要:
Oligomers with polydiene sequences and crosslinkable grafts are useful as coatings for protecting metal surfaces as well as inking buffers. The oligomers contain a polydiene sequence of 1-100 diene links, from 1 to 20 polar functional groups, and from 1-20 acrylic or methacrylic groups. The oligomers have the general formula: ##STR1##
摘要:
According to the invention, the reactive lubricating product of carbon fibres for embedding in a resin which can be hardened by X or beta radiation according to a radical mechanism is constituted by a monomer having at least one functional group (F.sub.1) able to form a covalent chemical bond with the hydroxyl sites of the carbon fibres and an ethylene unsaturation (F.sub.2) able to crosslink with the resin during its hardening under irradiation.