C08G2650/24

AQUEOUS POLYGLYCIDOL SYNTHESIS WITH ULTRA-LOW BRANCHING
20220267517 · 2022-08-25 ·

Disclosed herein are glycidol-based polymers, nanoparticles, and methods related thereto useful for a variety of applications, including, but not limited to, drug delivery. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Polymer compositions based on PXE

New polymer compositions based on poly(2,6-dimethyl-1,4-phenylene oxide) and other high-softening-temperature polymers are disclosed. These materials have a microphase domain structure that has an ionically-conductive phase and a phase with good mechanical strength and a high softening temperature. In some arrangements, the structural block has a softening temperature of about 210° C. These materials can be made with either homopolymers or with block copolymers. When these polymers are combined with electrolyte salts, they can be used as electrolytes that have both high ionic conductivity and good mechanical properties.

Multi-arm polyethylene glycol, preparation method and uses thereof
11208530 · 2021-12-28 ·

A novel multi-arm polyethylene glycol (PEG) (I) and preparation method thereof. Active derivatives (II) based on the multi-arm PEG. Gels formed of the active derivatives. Drug conjugates formed of the active derivatives and drug molecules and uses thereof in medical preparation. The multi-arm PEG is formed by polymerizing ethylene oxide with pentaerythritol oligomers as initiator, wherein PEG is the same or different and is a —(CH2CH2O)m-, the average value of m is an integer of 3-1000, l is an integer more than or equal to 2. An 8-arm PEG is preferred, wherein l is equal to 3. The active derivatives (II) comprise link groups X attached to PEG and active end groups F attached to X.

WHITE PHOTOSENSITIVE RESIN COMPOSITION, WHITE SPACER, LIGHT CONVERSION LAYER, AND LIGHT-EMITTING DEVICE
20210388158 · 2021-12-16 · ·

A white photosensitive resin composition, a white spacer, a light conversion layer, and a light-emitting device are provided. The white photosensitive resin composition includes a polymerizable compound (A), an alkali-soluble resin (B), a photopolymerization initiator (C), a solvent (D), and a white pigment (E). The polymerizable compound (A) includes an ethylenically-unsaturated monomer (A-1) represented by formula (I-1) and a thiol compound (A-2) having two or more thiol groups in one molecule, wherein based on 100 mass % of the polymerizable compound (A), a total content of the ethylenically-unsaturated monomer (A-1) and the thiol compound (A-2) is 10 mass % to 98 mass %.

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Oral care compositions comprising phosphono-phosphate and anionic group containing polymers

Disclosed are oral care compositions of novel phosphono-phosphate and anionic group containing polymer compositions that have targeted uses with divalent cations and surfaces having divalent cations. These compounds can be used to deliver anionic character to surfaces such as calcium hydroxyapatite for use in oral care applications.

Oral care compositions comprising phosphono-phosphate and anionic group containing polymers

Disclosed are oral care compositions of novel phosphono-phosphate and anionic group containing polymer compositions that have targeted uses with divalent cations and surfaces having divalent cations. These compounds can be used to deliver anionic character to surfaces such as calcium hydroxyapatite for use in oral care applications.

DUAL CATALYST SYSTEM FOR MASS VINYL ADDITION AND CATIONIC POLYMERIZABLE COMPOSITIONS
20230265243 · 2023-08-24 · ·

Embodiments in accordance with the present invention encompass compositions comprising an organopalladium compound, a photoacid generator, a photosensitizer, one or more epoxy group containing olefinic monomers. The compositions of this invention may additionally contain one or more olefinic monomers and a stabilizer, such as for example a hindered amine. The compositions undergo simultaneous vinyl addition polymerization and cationic polymerization when exposed to a suitable actinic radiation to form a substantially transparent film. The compositions of this invention are stable at room temperature for several days to several months and undergo mass polymerization only when subjected to suitable actinic radiation. The monomers employed therein have a range of optical and mechanical properties, and thus these compositions can be tailored to form films having various opto-electronic properties. More specifically, the compositions of this invention undergo much faster mass polymerization and exhibit superior thermo-mechanical properties when compared with the compositions containing only the olefinic monomers. Accordingly, compositions of this invention are useful in various applications, including as coatings, encapsulants, fillers, leveling agents, sealants, adhesives, among others.

MONOFUNCTIONAL BRANCHED POLYETHYLENE GLYCOL AND MODIFIED BIO-RELATED SUBSTANCE THEREOF

The monofunctional branched poly(ethylene glycol) (PEG) has a general formula shown in formula (1), and the bio-related substance modified by the monofunctional branched PEG has a general formula shown in formula (2), wherein X.sub.1 and X.sub.2 are each independently a hydrocarbon group having 1 to 20 carbon atoms, n.sub.1 and n.sub.2 are each independently an integer selected from 1 to 1000, n.sub.3 is an integer selected from 11 to 1000, L.sub.1, L.sub.2 are each independently a linking group, p is 0 or 1, q is 0 or 1, R.sub.1 is a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, D is a bio-related substance, Z is a linking group, and Z can react with the bio-related substance to form a residue group L.sub.3. The PEG-modified bio-related substance maintains good biological activity, and has better solubility and a longer half-life in vivo.

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LACTIDE CONTAINING POLYESTER-POLYETHYLENE GLYCOL TRIBLOCK THERMORESPONSIVE COPOLYMERS

The inventors of the technology disclosed herein have developed triblock copolymers of lactide-containing polyesters and poly(ethylene glycol), PEG, having thermoresponsive properties.

Aqueous polyglycidol synthesis with ultra-low branching
11161936 · 2021-11-02 · ·

Disclosed herein are glycidol-based polymers, nanoparticles, and methods related thereto useful for a variety of applications, including, but not limited to, drug delivery. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.