C08G63/676

CURABLE FORMULATIONS FOR LAMINATING ADHESIVES
20170369634 · 2017-12-28 ·

The instant invention provides a curable formulation suitable for laminating adhesive applications, and laminating adhesives made therefrom. The curable formulation suitable for laminating adhesive applications according to the present invention comprises a) a blend comprising i) an epoxy terminated polyester and at least one of ii) a maleate (poly) ester or iii) a diacrylate terminated oligomer or polymer and b) an aliphatic amine curing agent.

Injectable thermoresponsive polyelectrolytes

Provided herein are compositions, devices and systems comprising thermoresponsive, biodegradable elastomeric materials, and methods of use and manufacture thereof.

Injectable thermoresponsive polyelectrolytes

Provided herein are compositions, devices and systems comprising thermoresponsive, biodegradable elastomeric materials, and methods of use and manufacture thereof.

POLYESTERS PREPARED FROM 1,1-DIESTER-1-ALKENES CONTAINING A STRONG ACID AND STABILIZER

Disclosed are compositions comprising polyesters containing a chain of residue of: diols and diesters along the chain, wherein at least a portion of the diesters are 1, 1-diester-1-alkenes, and the chains have alkene groups incorporated into the chains; the composition comprising one or more of the following: i ether groups derived from alcohols, diols, polyols, or a combination thereof obtained via Michael addition to the alkene groups and a residue of the alkene groups remaining after Michael addition; ii the formed polyesters contain one percent or less of residual 1, 1-diester-1-alkene which are unreacted; iii one or more free radical inhibitors; and iv a stabilizer comprising one or more of: oxo acids phosphorous or esters thereof, aluminum sulfate, stannous pyrophosphate, stannous sulfate, aluminum dihydrogenphosphate or decomposition products thereof. The stabilizer is present in an amount sufficient to enhance stability of the polyester without lowering reactivity of the polyester.

POLYESTERS PREPARED FROM 1,1-DIESTER-1-ALKENES CONTAINING A STRONG ACID AND STABILIZER

Disclosed are compositions comprising polyesters containing a chain of residue of: diols and diesters along the chain, wherein at least a portion of the diesters are 1, 1-diester-1-alkenes, and the chains have alkene groups incorporated into the chains; the composition comprising one or more of the following: i ether groups derived from alcohols, diols, polyols, or a combination thereof obtained via Michael addition to the alkene groups and a residue of the alkene groups remaining after Michael addition; ii the formed polyesters contain one percent or less of residual 1, 1-diester-1-alkene which are unreacted; iii one or more free radical inhibitors; and iv a stabilizer comprising one or more of: oxo acids phosphorous or esters thereof, aluminum sulfate, stannous pyrophosphate, stannous sulfate, aluminum dihydrogenphosphate or decomposition products thereof. The stabilizer is present in an amount sufficient to enhance stability of the polyester without lowering reactivity of the polyester.

MULTIFUNCTIONAL ACRYLIC ETHER-ESTER PRODUCTS MODIFIED WITH CARBOXYLIC ANHYDRIDE OR ITS POLYACID FORM, PROCESS FOR PREPARING SAME AND ASSOCIATED CROSSLINKABLE COMPOSITIONS

The invention relates to a multifunctional acrylic product having a number-average functionality f of acrylate groups greater than 2.1, which is the product of reaction by esterification and by etherification, via Michael addition reaction, between a) a polyol or a mixture of polyols R(OH).sub.m having a functionality m of at least 3 for a polyol alone or having an average functionality greater than 2.1 for a mixture of polyols, and b) the acrylic acid (R.sub.1OH) in the presence of c) at least one cyclic polycarboxylic anhydride or of its polyacid form having a carboxy functionality z of at least 2 and up to 4, the ratio r.sub.1 of number of carboxy groups of said anhydride or polyacid c) with respect to those of the acrylic acid b) r.sub.1=CO.sub.2Hc/CO.sub.2Hb being from 0.01 to 0.4 with overall r=CO.sub.2H/OH<1, said acrylic product comprising in its composition both: units A) of oligoether-ester acrylate that are derived from a) and b) and units B) of oligoester acrylate that are derived from c),
said acrylic product being a mixture of acrylic products comprising at least one acrylic product p1 chemically linking, in its molecular structure, the two types of units A) and B) as defined above.

The invention also relates to a process for preparing said product, to crosslinkable compositions comprising same and to the use thereof in coatings, sealing, moulding or composite compositions, chemical sealing compositions, 3D printing compositions or compositions for 3D objects produced layer-by-layer. One particular advantage of these compositions is their low shrinkage despite their high functionality.

ASTAXANTHIN BASED POLYMER AND USES THEREOF

Provided are polymers having a repeating unit including at least one astaxanthin moiety. Also provided are processes for preparing the polymers and various uses thereof.

Aliphatic polyester with high elongation

An aliphatic polyester is provided. The aliphatic polyester comprises: a first structural unit represented by ##STR00001##
wherein R.sup.1 is absent or a C1 to C40 aliphatic hydrocarbyl; a second structural unit represented by ##STR00002##
wherein R.sup.2 is a C1 to C10 aliphatic hydrocarbyl; and a third structural unit derived from a first cross-linking agent, wherein the first cross-linking agent has three reactive functional groups, wherein at least one reactive functional group is a secondary or tertiary hydroxyl, with the proviso that the first cross-linking agent is not malic acid.

NOVEL COPOLYESTER AND USE THEREOF
20220227923 · 2022-07-21 ·

The present invention relates to a copolyester that includes following structural units: a first chain segment shown in Formula (I):

##STR00001##

and a second chain segment shown in Formula (II):

##STR00002## where the glass transition temperature (Tg) of the copolyester is 60° C. to 83° C. The present invention also provides a polyester fiber or packaging material containing the copolyester.

NOVEL COPOLYESTER AND USE THEREOF
20220227923 · 2022-07-21 ·

The present invention relates to a copolyester that includes following structural units: a first chain segment shown in Formula (I):

##STR00001##

and a second chain segment shown in Formula (II):

##STR00002## where the glass transition temperature (Tg) of the copolyester is 60° C. to 83° C. The present invention also provides a polyester fiber or packaging material containing the copolyester.