A polymeric anti-agglomerant hydrate inhibitor useful for preventing the formation of hydrate agglomerates in a multi-phase oilfield fluid may be synthesized via a condensation reaction between a cyclic anhydride and a tertiary amine-diol in the presence of a condensation catalyst to form a polyester amine precursor and a reaction of the polyester amine polymer precursor with an organic acid.

The present invention provides a polyester resin having a self-emulsifying function which is able to form an aqueous emulsion without using any emulsifier and organic solvent. The present invention also provides a water dispersion, an aqueous adhesive, an aqueous ink, a laminate and a packaging material containing the above polyester resin, as well as a method for preparing the water dispersion.

A thermosetting resin composition, a thermosetting resin composition for protective films, a thermosetting resin composition for planarizing films, and a method for producing a cured film, a protective film, or a planarizing film by using the resin composition. A thermosetting resin composition has a polymer having a structural unit of Formula (1) below, a curing agent in an amount of 0% by mass to 30% by mass with respect to the polymer, and a solvent. When the thermosetting resin composition includes the curing agent, the curing agent is at least one compound selected from polyfunctional (meth)acrylate compounds and polyfunctional blocked isocyanate compounds: ##STR00001##
(wherein A.sup.1 is a C.sub.2 or C.sub.3 alkenyl group or alkynyl group, and A.sup.2 is a C.sub.2 alkenylene group or alkynylene group).

The invention generally relates to novel poly-substituted cis stilbenes, their synthesis, their purification, and their use in thermoset resins. These novel cis stilbenes give rise to thermoset resins with greatly improved processing characteristics such as lower melting temperature and lower viscosity; resulting in polymers and composites having greatly improved thermal stability.

In various embodiments, the present invention provides well-defined biodegradable poly(lactone-b-propylene fumarate) diblock and triblock polymers formed using a novel one-pot, scalable ring-opening block-order copolymerization (ROBOCOP) technique that utilizes magnesium 2,6-di-tert-butyl-4-methylphenoxide (Mg(BHT).sub.2(THF).sub.2) to switch from the ROP of cyclic esters to the ROCOP of maleic anhydride (MAn) and propylene oxide (PO) to produce PPF based block copolymers for application in additive manufacturing and patient specific regenerative medicine. These block copolymers are fully resorbable and can be photochemically crosslinked in a number of applications, including 3D printing. By adding the lactone block to the PPF polymer, the viscosity of the resulting block copolymer at working temperatures can be precisely controlled and the quantity of the reactive diluent in printable resins can be reduced or eliminated.

A polyester elastomer is provided, which includes a product of reacting (a) amide oligomer, (b) polyalkylene glycol, and (c) poly(alkylene arylate). (a) Amide oligomer has a chemical structure of ##STR00001##
or a combination thereof, wherein R.sup.1 is C.sub.4-8 alkylene group, R.sup.2 is C.sub.4-8 alkylene group, and each of x is independently an integer of 10 to 20. (b) Polyalkylene glycol has a chemical structure of ##STR00002##
wherein R.sup.3 is C.sub.2-10 alkylene group, and y is an integer of 20 to 30. (c) Poly(alkylene arylate) has a chemical structure of ##STR00003##
or a combination thereof, wherein Ar is ##STR00004##
R.sup.4 is C.sub.2-6 alkylene group, and z is an integer of 1 to 10.

A polymer resin compound, a photosensitive resin composition for a black bank comprising the polymer resin compound, and a method for manufacturing a black bank. The method comprises coating the photosensitive resin composition on a substrate to form a photosensitive resin film; exposing and developing the photosensitive resin film to pattern the coated photosensitive resin film; and curing the patterned photosensitive resin film.

The present disclosure relates to a high-temperature liner for rehabilitating multilayered high-temperature pipes, a rehabilitated high-temperature pipe, the use of the high-temperature liner and a process for rehabilitating high-temperature pipes.

The invention relates to a method to prepare a precursor for a polymer or to prepare a polymer, the polymer comprising at least one unit of formula (I) or at least one unit of formula (II) having a tertiary amine and a pendant carboxyl group

##STR00001##

Furthermore the invention relates to a precursor or polymer comprising at least one unit of formula (I) and/or at least one unit of formula (II) and to the use of such precursor or such polymer in extrusion, injection moulding, compression moulding, transfer moulding, foam moulding, thermoforming, rotation moulding or 3D printing

Disclosed are biomimetic imageable polymeric materials that include a polymer or copolymer and a covalently-linked contrasting agent where the disclosed films are both bioresorbable and visible by X-ray fluoroscopic imaging and/or magnetic resonance imaging. The invention also provides methods of preparing the polymeric materials and their use in and as implantable medical devices.