Provided is a foamed acrylic-resin object, in which a heat-resistant temperature in thermomechanical analysis is 170 C. or higher, and the number of bubbles respectively having a major diameter of 2 mm or greater is 2.0 or less per area of 10 cm10 cm.

A method of preparing a retort packaging article includes: providing a sealable packaging; applying an ink to an outer surface of the sealable packaging; and overlaying a substantially transparent lamination layer over the ink and enveloping at least a portion of the sealable packaging. The ink contains a styrene-acrylic resin, which has anhydride functionality, and a polyurethane resin.

A method of preparing a retort packaging article includes: providing a sealable packaging; applying an ink to an outer surface of the sealable packaging; and overlaying a substantially transparent lamination layer over the ink and enveloping at least a portion of the sealable packaging. The ink contains a styrene-acrylic resin, which has anhydride functionality, and a polyurethane resin.

The present invention provides amidic polymers, which exhibit shale swelling inhibitor activity having improved bio-degradability. The amidic polymers of the invention may be employed in a wide variety of compositions, particularly in subterranean drilling operations. Non-limiting generic structures of the amidic polymers are set out below: (1) wherein R.sub.1-R.sub.3 and integers m and n are defined herein.

##STR00001##

A film touch sensor includes a separation layer; a protective layer disposed on the separation layer, and an electrode pattern layer which is disposed on the protective layer and includes an insulation layer that is a cured layer of a binder resin including (a-1) a resin in which at least a part of a phenolic hydroxyl group or a carboxyl group is protected with an acid decomposable group, (a-2) an acrylic resin containing an epoxy group, and (a-3) an acrylic resin containing an oxetane group, such that it is possible to suppress thermal damage such as wrinkles, or cracks of the insulation layer, which may occur in high-temperature deposition and annealing processes, and significantly reduce an occurrence rate of cracks during peeling-off the same from a carrier substrate.

A film touch sensor includes a separation layer; a protective layer disposed on the separation layer, and an electrode pattern layer which is disposed on the protective layer and includes an insulation layer that is a cured layer of a binder resin including (a-1) a resin in which at least a part of a phenolic hydroxyl group or a carboxyl group is protected with an acid decomposable group, (a-2) an acrylic resin containing an epoxy group, and (a-3) an acrylic resin containing an oxetane group, such that it is possible to suppress thermal damage such as wrinkles, or cracks of the insulation layer, which may occur in high-temperature deposition and annealing processes, and significantly reduce an occurrence rate of cracks during peeling-off the same from a carrier substrate.

A protective, sacrificial, water-reversible, coating composition for the protection of substrates comprised of water, a volatile base, a film-forming acrylic polymer in a water dispersion form, a compatabilizing polymer, specifically poly (2-ethyl-2-oxazoline), a poly acidic polymer (pH specific in terms of its solubility), wherein said coating is both water applied and water reversible or re-soluble under specific pH conditions.

Provided is a slurry composition for a lithium ion secondary battery that can cause an electrode for a lithium ion secondary battery to display excellent adhesiveness (peel strength) and flexibility (pliability) and that can cause a lithium ion secondary battery to display excellent rate characteristics and cycle characteristics. The slurry composition for a lithium ion secondary battery contains a silicon compound and a binder. The silicon compound includes either or both of Li.sub.2SiO.sub.3 and Li.sub.4SiO.sub.4. The binder includes a water-soluble polymer that includes either or both of an ethylenically unsaturated carboxylic acid monomer unit (A) and an alkali metal salt thereof, and that includes a cross-linkable monomer unit (B). A 1 mass % aqueous solution of the water-soluble polymer has a viscosity of 1,000 mPa.Math.s or less. The slurry composition for a lithium ion secondary battery has a pH of not lower than 9 and not higher than 12.

The present invention provides amidic polymers, which exhibit shale swelling inhibitor activity having improved biodegradability. The amidic polymers of the invention may be employed in a wide variety of compositions, particularly in subterranean drilling operations. Non-limiting generic structures of the amidic polymers are set out below: formula (1) wherein R.sub.1-R.sub.3 and integers m and n are defined herein. ##STR00001##

The present invention provides a copolymer demonstrating superior heat resistance, fluidity, mechanical properties, appearance, low water absorbency and moldability. In addition, the present invention provides a process for producing a copolymer that enables the resulting copolymer to demonstrate superior heat resistance, fluidity, mechanical properties, appearance, low water absorbency and moldability. The copolymer of the present invention is a copolymer containing 80 mol % or more of a methyl (meth)acrylate unit (A), wherein the Vicat softening temperature thereof is 115 C. or higher, the saturated water absorption rate thereof at 60 C. is 4% by weight or less, and the yellow index thereof is 1 or less. In addition, the process for producing a copolymer of the present invention comprises the obtaining of a precursor by suspension polymerizing a monomer mixture containing 80 mol % or more of methyl (meth)acrylate (a) and 0.7 mol % to 7 mol % of (meth)acrylic acid (b), followed by melting and kneading the resulting precursor with an extruder to obtain a copolymer containing 80 mol % or more of a methyl (meth)acrylate unit (A), 0.45 mol % to 7 mol % of a (meth)acrylic acid unit (B), and 0.001 mol % to 0.25 mol % of a glutaric anhydride unit (C).