The present invention relates to a process for the preparation of an aqueous polymer solution containing at least one cationic or amphoteric (co)polymer, comprising the following steps: Hofmann degradation reaction on a (co)polymer based on at least one non-ionic monomer chosen from the group including acrylamide, methacrylamide, N,N-dimethylacrylamide, and acrylonitrile; post-processing of the resulting aqueous polymer solution of viscosity V1; characterized in that the post processing comprises the following successive steps: obtaining of an aqueous polymer solution containing at least one cationic or amphoteric (co)polymer derived from the Hofmann degradation reaction; post-processing of this aqueous polymer solution; characterized in that the post processing comprises the following successive steps: (a) adjustment of the pH of the aqueous polymer solution to a value greater than or equal to 5.5; (b) decrease of the pH of the aqueous polymer solution to a value between 2 and 5. The invention also concerns the use of this polymer solution as a flocculant, retention and/or drainage agent, and dry strength resistance in a paper manufacturing process.

An apparatus for coating at least a first plurality of articles each article thereof having at least a first surface to be coated is disclosed. The apparatus includes an emission source for directing emission elements towards the first surfaces of the plurality of articles, at least one support member for supporting the first plurality of articles, wherein support member supports the first plurality of articles such that the first surface is exposed to the path of emission from said emission source, and a drive assembly for moving the support member such that the first plurality of articles is moveable with respect to the path of emission from said emission source.

An apparatus for coating at least a first plurality of articles each article thereof having at least a first surface to be coated is disclosed. The apparatus includes an emission source for directing emission elements towards the first surfaces of the plurality of articles, at least one support member for supporting the first plurality of articles, wherein support member supports the first plurality of articles such that the first surface is exposed to the path of emission from said emission source, and a drive assembly for moving the support member such that the first plurality of articles is moveable with respect to the path of emission from said emission source.

Provided are compositions and methods that are useful for clarifying water, reducing turbidity of water, and removing salts from water. The compositions comprise (a) an anionic flocculant comprising at least one of an alkali swellable emulsion (ASE) or hydrophobically-modified alkali swellable emulsion (HASE), and (b) a cationic flocculant comprising (i) an aluminum-containing compound, and (ii) a copolymer of acrylamide and a cationic monomer comprising at least one of a diallyldialkylammonium quaternary compound, acrylamidoalkyltrialkylammonium quaternary compound, methacrylamidoalkyltrialkylammonium quaternary compound, and mixtures thereof.

Provided are compositions and methods that are useful for clarifying water, reducing turbidity of water, and removing salts from water. The compositions comprise (a) an anionic flocculant comprising at least one of an alkali swellable emulsion (ASE) or hydrophobically-modified alkali swellable emulsion (HASE), and (b) a cationic flocculant comprising (i) an aluminum-containing compound, and (ii) a copolymer of acrylamide and a cationic monomer comprising at least one of a diallyldialkylammonium quaternary compound, acrylamidoalkyltrialkylammonium quaternary compound, methacrylamidoalkyltrialkylammonium quaternary compound, and mixtures thereof.

To provide an aqueous composition for aqueous coating that contains a polymerized substance of a N-vinyl carboxylic acid amide and that dries efficiently when used to produce a coating substance. A composition for aqueous coating liquid, comprising at least a copolymer of a N-vinyl carboxylic acid amide monomer and a monomer of a salt of an unsaturated carboxylic acid, and water, in which the molar ratio between the N-vinyl carboxylic acid amide monomer and the monomer of a salt of an unsaturated carboxylic acid is 7.0:93.0 to 93.0:7.0, and the weight-average molecular weight of the copolymer is 15,000 to 2,500,000.

A resin composition for golf balls includes (a) an acid-containing copolymer having an amount of acid constituent per 100 wt % of the sum of monomer units in the copolymer that is from 1 to 30 wt %, and (b) an amine-containing polymer having a branched structure. The resin composition imparts golf balls with an excellent rebound resilience and also confers an outstanding durability to repeated impact and an outstanding scuff resistance, making it particularly useful as a cover material in golf balls.

A resin composition for golf balls includes (a) an acid-containing copolymer having an amount of acid constituent per 100 wt % of the sum of monomer units in the copolymer that is from 1 to 30 wt %, and (b) an amine-containing polymer having a branched structure. The resin composition imparts golf balls with an excellent rebound resilience and also confers an outstanding durability to repeated impact and an outstanding scuff resistance, making it particularly useful as a cover material in golf balls.

Provided are imidazolium zwitterion polymerizable compounds and their applications in ophthalmic devices and packaging solutions. The zwitterionic polymerizable compounds are of formula I:

##STR00001##

wherein R.sup.1, R.sup.2, R.sup.3, L.sup.1, L.sup.2, and R.sub.g are as described herein.

Provided are imidazolium zwitterion polymerizable compounds and their applications in ophthalmic devices and packaging solutions. The zwitterionic polymerizable compounds are of formula I:

##STR00001##

wherein R.sup.1, R.sup.2, R.sup.3, L.sup.1, L.sup.2, and R.sub.g are as described herein.