Abstract:
The present invention relates to macroinitiators comprising at least one hydrophobic segments in a molecule, wherein a molecular weight of the hydrophobic segment is 300 to 1800. The present invention further relates to block copolymers, wetting agent and polymeric materials having the block copolymers of the present invention associated with, which is suitable for medical devices, particularly for ophthalmic devices, including contact lenses, ophthalmic lenses, punctal plugs and artificial corneas.
Abstract:
A mold release agent for being coated onto a tire bladder made of a zinc-oxide-incorporated butyl rubber during pneumatic-tire molding, the mold release agent being characterized in containing (A) organopolysiloxane, which contains a carboxy group indicated by the general formula (1) below
(in the formula, R 1 is a substituted or unsubstituted C1-C30 monovalent hydrocarbon group excluding R 2 , R 2 is a carboxy-group-substituted C1-C30 monovalent organic group, R 3 is R 1 or R 2 , and n is an integer of 3 to 2000.). This mold release agent produces a longer service life of a tire bladder and leads to reduced tire production cost because the amount of silicone that migrates to the tire side is low when the tire is released, and repeated mold-release performance is enhanced.
Abstract:
The invention provides a drag reducer having an excellent frictional drag-reducing effect on an aqueous medium and the like and also provides a fire-extinguishing agent including this drag reducer. The drag reducer according to the present invention includes a polyalkylene oxide aqueous dispersion that includes a polyalkylene oxide, aluminum oxide, an electrolyte, and water, and that has the polyalkylene oxide dispersed therein. The drag reducer has an excellent frictional drag-reducing effect on an aqueous medium and the like.
Abstract:
A packaging material is described. The packaging material comprises a substrate comprising a thermoplastic and a coating comprising an emulsion. The emulsion comprises (a) water, (b) a first particle comprising particles having an average particle size of greater than 0 but less than 10 microns and comprising acrylic beads, (c) an acrylic-based carrier, and (d) a second particle comprising particles having an average particle size of from 65 microns to 110 microns and comprising polyamide, polyethylene, polypropylene, polytetrafluoroethylene, or combinations of polyamide, polyethylene, polypropylene, or polytetrafluoroethylene. The combination of the water, the first particle, and the acrylic-based carrier comprises from about 75% to about 95% by weight of the coating, and the second particle comprises from about 5% to about 25% by weight of the coating. Various embodiments of the packaging material are also described.
Abstract:
The presently disclosed claimed inventive concept(s) relates generally to a rheology modifier composition and an aqueous protective coating composition containing the rheology modifier composition. More particularly, the presently disclosed and/or claimed inventive concept(s) relates to a rheology modifier composition comprising (a) about 50 to about 99% by weight of a water soluble polymer and about 1 to about 50% by weight of a cationic polymer, wherein the cationic polymer is produced by polymerizing a quaternized monomer or by polymerizing a quaternized monomer and a non-quaternized monomer. Additionally, the presently disclosed and/or claimed inventive concept(s) relates generally to the methods of making the rheology modifier composition and the aqueous protective coating composition.
Abstract:
Provided is a method for producing an aqueous modified polyolefin dispersion composition that is industrially excellent, the method comprising the steps of preparing an aqueous modified polyolefin dispersion that does not contain a surfactant, and then mixing a specific surfactant, whereby foaming can be suppressed during the removal of the organic solvent, and the processing time can be significantly reduced. The method for producing an aqueous modified polyolefin dispersion composition comprises the steps (1) and (2): (1) step 1 of obtaining an aqueous modified polyolefin dispersion using a modified polyolefin, an organic solvent, a base compound, and water as starting materials; and (2) step 2 of mixing a surfactant with the aqueous modified polyolefin dispersion in an amount of 0.1 to 10 wt.% based on the weight of the modified polyolefin.
Abstract:
The present invention relates to a formulation comprising: i) an aqueous polymer dispersion comprising: a) at least one homo- or copolymer P containing in the form of polymerized units at least one ethylenically unsaturated monomer; b) at least 6% by weight, based on the total of the ethylenically unsaturated monomer, of at least one saccharide-compound S; wherein in a) the at least one homo- or copolymer P is obtained by polymerization of the at least one ethylenically unsaturated monomer in the presence of at least a part of the at least one saccharide-compound S from b); ii) at least one tackifier.