C08F220/286

ONE PART MOISTURE CURABLE RESINS FOR ADDITIVE MANUFACTURING
20230095658 · 2023-03-30 ·

Provided herein is an additive manufacturing method of making a three-dimensional object comprising polyurea, comprising: (a) dispensing a one part (1K) dual cure resin into a stereolithography apparatus, the resin comprising or consisting essentially of a photoinitiator, a reactive blocked polyisocyanate, and optionally a polyepoxide, the reactive blocked polyisocyanate comprising the reaction product of a polyisocyanate and an amine or hydroxyl (meth)acrylate or (meth)acrylamide monomer blocking agent; (b) additively manufacturing from said resin an intermediate object comprising the light polymerization product of said reactive blocked polyisocyanate; (c) optionally cleaning said intermediate object; and (d) reacting said polymerization product in said intermediate with water to generate polyamine in situ that sequentially reacts with the remainder of the polymerization product to form urea linkages and hereby produce a three-dimensional object comprising polyurea. One part (1K) dual cure resins useful for the method are also provided.

Positive electrode and lithium battery including the same

A positive electrode includes a composite material including a positive active material and a coating layer on a surface of the positive active material, wherein the coating layer includes a copolymer including a first repeating unit represented by Formula 1 below and a second repeating unit represented by Formula 2 below: ##STR00001## ##STR00002## wherein Ar.sub.1, R.sub.1 to R.sub.6, A, A.sub.1, ##STR00003##
Y.sup.−, m, and n are the same as defined in the specification.

Positive electrode and lithium battery including the same

A positive electrode includes a composite material including a positive active material and a coating layer on a surface of the positive active material, wherein the coating layer includes a copolymer including a first repeating unit represented by Formula 1 below and a second repeating unit represented by Formula 2 below: ##STR00001## ##STR00002## wherein Ar.sub.1, R.sub.1 to R.sub.6, A, A.sub.1, ##STR00003##
Y.sup.−, m, and n are the same as defined in the specification.

Cold water soluble polymer films for packaging highly alkaline detergents

A film: (a) 50 to 85 wt % polymer comprising: (i) 30 to 70 wt % hard polymer with T.sub.g from 40 to 70° C. and 40 to 80 wt % (C.sub.1-C.sub.10)alkyl (meth)acrylate; 10 to 40 wt % C.sub.3-C.sub.8 carboxylic acid; and 0 to 25 wt % hydroxyalkyl (meth)acrylate; and (ii) 30 to 70 wt % soft polymer with T.sub.g from −20 to 20 ° C. and 50 to 90 wt % (C.sub.1-C.sub.10)alkyl (meth)acrylate; 5 to 30 wt % C.sub.3-C.sub.8 carboxylic acid; and 0 to 25 wt % hydroxyalkyl (meth)acrylate;
hard T.sub.g minus soft T.sub.g is at least 30° C.; (iii) 0 to 10 wt %, of (C.sub.12-C.sub.24)alkyl (meth)acrylate polymer containing crystallizable portion with T.sub.m from 0° C. to 37° C.; (b) 10 to 40 wt % of polyethylene oxide having M.sub.w from 250,000 to 4,000,000; and (c) 0 to 10 wt % of poly(vinylpyrrolidone) having M.sub.w from 25,000 to 2,000,000.

Cold water soluble polymer films for packaging highly alkaline detergents

A film: (a) 50 to 85 wt % polymer comprising: (i) 30 to 70 wt % hard polymer with T.sub.g from 40 to 70° C. and 40 to 80 wt % (C.sub.1-C.sub.10)alkyl (meth)acrylate; 10 to 40 wt % C.sub.3-C.sub.8 carboxylic acid; and 0 to 25 wt % hydroxyalkyl (meth)acrylate; and (ii) 30 to 70 wt % soft polymer with T.sub.g from −20 to 20 ° C. and 50 to 90 wt % (C.sub.1-C.sub.10)alkyl (meth)acrylate; 5 to 30 wt % C.sub.3-C.sub.8 carboxylic acid; and 0 to 25 wt % hydroxyalkyl (meth)acrylate;
hard T.sub.g minus soft T.sub.g is at least 30° C.; (iii) 0 to 10 wt %, of (C.sub.12-C.sub.24)alkyl (meth)acrylate polymer containing crystallizable portion with T.sub.m from 0° C. to 37° C.; (b) 10 to 40 wt % of polyethylene oxide having M.sub.w from 250,000 to 4,000,000; and (c) 0 to 10 wt % of poly(vinylpyrrolidone) having M.sub.w from 25,000 to 2,000,000.

High viscosity latexes
11608403 · 2023-03-21 · ·

Methods for forming latexes are provided. In an embodiment, such a method comprises adding a monomer emulsion comprising water, a monomer, an acidic monomer, a hydrophilic monomer, a difunctional monomer, a first reactive surfactant, and a chain transfer agent, to a reactive surfactant solution comprising water, a second reactive surfactant, and an initiator, at a feed rate over a period of time so that monomers of the monomer emulsion undergo polymerization reactions to form resin particles in a latex. The reactive surfactant solution does not comprise monomers other than the second reactive surfactant, the reactive surfactant solution does not comprise a resin seed, and the monomer emulsion does not comprise the resin seed. The latex is characterized by a viscosity in a range of from about 10 cP to about 100 cP as measured at a solid content of about 30% and at room temperature. The latexes are also provided.

ENZYME-ASSISTED ATRP PROCEDURES

Materials and methods for conducting an atom transfer radical polymerization in the presence of oxygen by interlocking enzymatic activities are provided herein.

Polymer with branched structure
11479688 · 2022-10-25 · ·

The presently claimed invention relates to polymer with branched structure, in particular, hydrophobically modified alkali-soluble (or alkali-swellable) emulsion (HASE) copolymers which are effective thickeners at high shear rates and at the same time offer a Newtonian rheology profile and their use in aqueous compositions, particularly in aqueous coating formulations as well as a method for preparing hydrophobically modified alkali-soluble (or alkali-swellable) emulsion copolymers.

Polymer with branched structure
11479688 · 2022-10-25 · ·

The presently claimed invention relates to polymer with branched structure, in particular, hydrophobically modified alkali-soluble (or alkali-swellable) emulsion (HASE) copolymers which are effective thickeners at high shear rates and at the same time offer a Newtonian rheology profile and their use in aqueous compositions, particularly in aqueous coating formulations as well as a method for preparing hydrophobically modified alkali-soluble (or alkali-swellable) emulsion copolymers.

Resin for energy device electrode, composition for forming energy device electrode, energy device electrode, and energy device

A resin for an energy device electrode contains a structural unit derived from a nitrile group-containing monomer; and a structural unit derived from a monomer represented by the following Formula (I), wherein the resin does not contain a structural unit that is derived from a carboxy group-containing monomer and that contains a carboxy group, or the resin has a ratio of a structural unit that is derived from a carboxy group-containing monomer and that contains a carboxy group of 0.01 moles or less with respect to 1 mole of the structural unit derived from a nitrile group-containing monomer, and a ratio of the structural unit derived from a nitrile group-containing monomer to a total of structural units derived from each monomer is from 90% by mole to less than 100%. ##STR00001##