C08L39/04

ANTIVIRAL COMPOSITIONS AND RELATED METHODS
20220104488 · 2022-04-07 ·

Polyamines are water-soluble polyelectrolytes with the amino groups that can be used to attach the polymers onto functional surfaces of fibrous materials. In addition, polyamines can be readily modified by (super)nucleophilic groups such as (alkyl)aminopyridines that enhance the polymer's ability to promote hydrolysis of organophosphorous chemical warfare agents. Furthermore, attachment of hydantoin moieties augments the number of the imide, amide, or amine groups on the polyamine's chain, which provides oxidizing properties to the resulting modified polyamine after halogenation. In one aspect, disclosed herein are polyamines with side chains modified to contain both (4-aminopyridine, APy) and 5-(4-hydroxybenzylidene)hydantoin (HBH) functionalities with enhanced content of the active bromine. Viricidal activity of the APy- and HBH-modified polyallylamine against human coronavirus (type 229E) was tested both in solution and on nylon-cotton fabric. The polymers are effective at inactivating the coronavirus, at both low concentrations and short exposure times.

High Temperature Polyketone Copolymers
20220081549 · 2022-03-17 · ·

Compositions and methods for amorphous high temperature polyketone polymers incorporating 2H-benzimidazol-2-one with dihalobenzophenone and bis(halobenzoyl)benzene as comonomer units are described herein. The polyketones polymers have advantageous properties, particularly in terms of high glass transition temperatures (T.sub.g), inherently flame resistance, good mechanical properties at elevated temperature, chemical resistance and dimensional stability in wet environment. The polymers are suitable for manufacturing high temperature molded systems and other articles of manufacture via injection molding, extrusion, compression molding, coating, blow molding, thermoforming, rotational molding and additive manufacturing.

High Temperature Polyketone Copolymers
20220081549 · 2022-03-17 · ·

Compositions and methods for amorphous high temperature polyketone polymers incorporating 2H-benzimidazol-2-one with dihalobenzophenone and bis(halobenzoyl)benzene as comonomer units are described herein. The polyketones polymers have advantageous properties, particularly in terms of high glass transition temperatures (T.sub.g), inherently flame resistance, good mechanical properties at elevated temperature, chemical resistance and dimensional stability in wet environment. The polymers are suitable for manufacturing high temperature molded systems and other articles of manufacture via injection molding, extrusion, compression molding, coating, blow molding, thermoforming, rotational molding and additive manufacturing.

High Temperature Polyketone Copolymers
20220081549 · 2022-03-17 · ·

Compositions and methods for amorphous high temperature polyketone polymers incorporating 2H-benzimidazol-2-one with dihalobenzophenone and bis(halobenzoyl)benzene as comonomer units are described herein. The polyketones polymers have advantageous properties, particularly in terms of high glass transition temperatures (T.sub.g), inherently flame resistance, good mechanical properties at elevated temperature, chemical resistance and dimensional stability in wet environment. The polymers are suitable for manufacturing high temperature molded systems and other articles of manufacture via injection molding, extrusion, compression molding, coating, blow molding, thermoforming, rotational molding and additive manufacturing.

THERMOSETTING RESIN COMPOSITION FOR LDS AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
20220064402 · 2022-03-03 · ·

A thermosetting resin composition for laser direct structuring (LDS) which is used for LDS includes the following components: (A) a thermosetting resin; (B) an inorganic filler; (C) a non-conductive metal compound that forms a metal nucleus upon irradiation with active energy rays; and (D) a coupling agent, in which the component (A) contains one or more selected from the group consisting of an epoxy resin and a bismaleimide resin, and at least one of the following conditions is satisfied.

Condition 1: a ratio of particles having a particle size equal to or more than 1 μm and equal to or less than 20 μm in the component (B) is equal to or more than 40% by volume and equal to or less than 95% by volume with respect to a total volume of the component (B), and

Condition 2: an angle of fall of the thermosetting resin composition for LDS is equal to or less than 35°.

THERMOSETTING RESIN COMPOSITION FOR LDS AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
20220064402 · 2022-03-03 · ·

A thermosetting resin composition for laser direct structuring (LDS) which is used for LDS includes the following components: (A) a thermosetting resin; (B) an inorganic filler; (C) a non-conductive metal compound that forms a metal nucleus upon irradiation with active energy rays; and (D) a coupling agent, in which the component (A) contains one or more selected from the group consisting of an epoxy resin and a bismaleimide resin, and at least one of the following conditions is satisfied.

Condition 1: a ratio of particles having a particle size equal to or more than 1 μm and equal to or less than 20 μm in the component (B) is equal to or more than 40% by volume and equal to or less than 95% by volume with respect to a total volume of the component (B), and

Condition 2: an angle of fall of the thermosetting resin composition for LDS is equal to or less than 35°.

Dispersants, coating compositions including dispersants, and methods of forming the same
11130879 · 2021-09-28 · ·

A graft copolymer is provided herein. The graft copolymer includes a polymeric backbone. The polymeric backbone includes a cyclic amine-containing moiety. The graft copolymer further includes a first side chain bound to the polymeric backbone, wherein the first side chain includes an acid-containing moiety. The graft copolymer further includes a second side chain bound to the polymeric backbone, wherein the second side chain includes an alkoxylated moiety. Another graft copolymer is provided herein. The graft copolymer includes a polymeric backbone. The polymeric backbone includes a quaternary ammonium moiety formed from a reaction of an amine-containing moiety and an alkylation agent. The graft copolymer further includes a first side chain bound to the polymeric backbone, wherein the first side chain includes an acid-containing moiety. The graft copolymer further includes a second side chain bound to the polymeric backbone, wherein the second side chain includes an alkoxylated moiety.

Dispersants, coating compositions including dispersants, and methods of forming the same
11130879 · 2021-09-28 · ·

A graft copolymer is provided herein. The graft copolymer includes a polymeric backbone. The polymeric backbone includes a cyclic amine-containing moiety. The graft copolymer further includes a first side chain bound to the polymeric backbone, wherein the first side chain includes an acid-containing moiety. The graft copolymer further includes a second side chain bound to the polymeric backbone, wherein the second side chain includes an alkoxylated moiety. Another graft copolymer is provided herein. The graft copolymer includes a polymeric backbone. The polymeric backbone includes a quaternary ammonium moiety formed from a reaction of an amine-containing moiety and an alkylation agent. The graft copolymer further includes a first side chain bound to the polymeric backbone, wherein the first side chain includes an acid-containing moiety. The graft copolymer further includes a second side chain bound to the polymeric backbone, wherein the second side chain includes an alkoxylated moiety.

Bearing and bearing liner

The present invention is directed at products and methods related to the manufacture of a bearing with a bearing liner and the bearing liner on its own. The bearing liner within the bearing includes a fabric with a bonding side polymerized resin composition dispensed on one side and a sliding side polymerized resin composition disposed on a second side that contains dispersed lubricant. The liner preparation also offers the ability for the liner to conform to a selected bearing surface.

Bearing and bearing liner

The present invention is directed at products and methods related to the manufacture of a bearing with a bearing liner and the bearing liner on its own. The bearing liner within the bearing includes a fabric with a bonding side polymerized resin composition dispensed on one side and a sliding side polymerized resin composition disposed on a second side that contains dispersed lubricant. The liner preparation also offers the ability for the liner to conform to a selected bearing surface.