A composition is obtained by mixing at least one oligomer A1, which is obtained by copolymerizing at least two monomers functionalized by diol functions with at least one second monomer, with at least one compound A2 having at least two boron ester functions. The compositions exhibit very varied rheological properties depending on the proportion of the compounds A1 and A2 used. A composition is also obtained by mixing at least one lubricating oil with such a composition of associative and exchangeable polymers, and the use of this composition to lubricate a mechanical part.

The present invention relates to a composite preform comprising a multistage polymer. The present invention further relates to a method for making a composite preform comprising a fibrous material and a multistage polymer and its use in making composite articles. The present invention also relates to a process for preparing a composite preform comprising a fibrous material and a multistage polymer and its use for producing fibre reinforced impact modified composites.

A paint composition comprises (A) a binder component and (B) a rheology control agent, the rheology control agent (B) comprising a reaction product of (b1) a polyisocyanate compound, (b2) a primary monoamine having a number average molecular weight of 300 or less, and (b3) a polyether amine having a number average molecular weight of more than 300 but less than 6000.

A paint composition comprises (A) a binder component and (B) a rheology control agent, the rheology control agent (B) comprising a reaction product of (b1) a polyisocyanate compound, (b2) a primary monoamine having a number average molecular weight of 300 or less, and (b3) a polyether amine having a number average molecular weight of more than 300 but less than 6000.

Composition, comprising at least components (A) and (B) and optionally at least one of components (C) to (E): (A) polyacrylate obtained in the polymerisation of components (M1) CH.sub.2═CR.sup.3COO—R.sup.1 with (M2) CH.sub.2═CR.sup.3COO—R.sup.2 and optionally (M3) CH.sub.2═CR.sup.3—X—R.sup.4
(B) wax
(C) blocked isocyanate
(D) organic polysiloxane;
(E) melamine resin;
wherein
R.sup.1 is a residue containing from 1 to 8 carbon atoms;
R.sup.2 is a residue containing from 9 to 40 carbon atoms;
R.sup.3=H, CH.sub.3, C.sub.2H.sub.5;
X=COO, CONH
R.sup.4=glycidyl or CH.sub.2(CH.sub.2).sub.n—OR.sup.5, wherein n is an integer in the range of from 1-10 and R.sup.5 is H or a residue containing from 1 to 6 carbon atoms;
and wherein the composition is based on water and/or an organic solvent and is fluorine-free.

Composition, comprising at least components (A) and (B) and optionally at least one of components (C) to (E): (A) polyacrylate obtained in the polymerisation of components (M1) CH.sub.2═CR.sup.3COO—R.sup.1 with (M2) CH.sub.2═CR.sup.3COO—R.sup.2 and optionally (M3) CH.sub.2═CR.sup.3—X—R.sup.4
(B) wax
(C) blocked isocyanate
(D) organic polysiloxane;
(E) melamine resin;
wherein
R.sup.1 is a residue containing from 1 to 8 carbon atoms;
R.sup.2 is a residue containing from 9 to 40 carbon atoms;
R.sup.3=H, CH.sub.3, C.sub.2H.sub.5;
X=COO, CONH
R.sup.4=glycidyl or CH.sub.2(CH.sub.2).sub.n—OR.sup.5, wherein n is an integer in the range of from 1-10 and R.sup.5 is H or a residue containing from 1 to 6 carbon atoms;
and wherein the composition is based on water and/or an organic solvent and is fluorine-free.

Provided is a resin composition which is capable of forming a molded body that has excellent surface hardness, transparency, hue and weather resistance, while exhibiting excellent wet heat resistance. A resin composition which contains a (meth)acrylic copolymer (A) and a polycarbonate-based resin (B), and wherein: the (meth)acrylic copolymer (A) contains an aromatic (meth)acrylate unit (a1), a methyl (meth)acrylate unit (a2) and a (meth)acrylate unit (a3) represented by formula (1); the mass ratio (a1)/(a2) is from 5/95 to 85/15; the content of the unit (a3) is 0.1-10 parts by mass relative to 100 parts by mass of the total of the units (a1) and (a2); and the unit (a1) is different from the unit (a3). ##STR00001##

The present invention recognizes that medical devices, such as but not limited to contact lenses, can be made having a coating made at least in part using printing technologies to provide drug storage and drug release structures. The coating preferably includes at least one drug reservoir layer and a least one barrier layer, and can include structures, such as but not limited to capillary structures that alone or in combination modulate the release of the drug from the coating. One aspect of the present invention is a medical device that incorporates a drug in at least one coating.

Compositions resulting from the mixing of at least one oligomer A1, resulting from the copolymerization of at least one monomer functionalized by diol functions with at least a second monomer, and at least one compound A2 including at least two boronic ester functions. The compositions exhibit very varied rheological properties, depending on the proportion of the compounds A1 and A2 used. A composition also results from mixing at least one lubricating oil with such a composition of associative and exchangeable polymers, and to the use of this composition to lubricate a mechanical part.

Compositions resulting from the mixing of at least one oligomer A1, resulting from the copolymerization of at least one monomer functionalized by diol functions with at least a second monomer, and at least one compound A2 including at least two boronic ester functions. The compositions exhibit very varied rheological properties, depending on the proportion of the compounds A1 and A2 used. A composition also results from mixing at least one lubricating oil with such a composition of associative and exchangeable polymers, and to the use of this composition to lubricate a mechanical part.