The present disclosure relates to the technical field of B29D7/01, and more particularly to a composite pre-coating film and a preparation method thereof, and a composite floor. The preparation method includes the following steps: laminating a polymeric printing film, a polymeric transparent film, and a radiation-cured coating A in sequence. In the present disclosure, the composite pre-coating film has multiple functions through a composite structure design. The radiation-cured coating A provides a desirable abrasion and scratch resistance and gloss; the polymeric transparent film provides an abrasion resistance and flexibility; and the polymeric printing film provides a color pattern effect. After being embossed by an embossing roller, the composite pre-coating film has a three-dimensional simulated pattern effect, as well as excellent wear resistance, scratch resistance, and stain resistance, and can be used to prepare a composite floor with various wood-plastic structures.

Polyvinyl chloride compositions and films formed therefrom are described which exhibit improved printability and resistance to weathering. The compositions generally comprise polyvinyl chloride having a certain molecular weight, at least one bio-based plasticizer, at least one UV absorber, at least one hindered amine light stabilizer, at least one heat stabilizer, and at least one acid scavenger. Also described are various vinyl-based laminates using the films which can be for example adhesive laminates. Also described are methods of producing the noted films and laminates.

Polyvinyl chloride compositions and films formed therefrom are described which exhibit improved printability and resistance to weathering. The compositions generally comprise polyvinyl chloride, at least one plasticizer, at least one heat stabilizer, certain UV stabilizer(s), and print additives and/or other agents. In particular versions, the compositions utilize a combination of polyvinyl chloride resins. Also described are various vinyl-based laminates using the films which can be for example reflective products. Also described are methods of producing the noted laminates.

A bipolar membrane in which a cation-exchange membrane and an anion-exchange membrane are joined to each other, wherein a leakage ratio of gluconic acid at 60 C. is not more than 1.0%, and the cation-exchange membrane is supported by a polyolefin reinforcing member and, further, contains a polyvinyl chloride.

Provided are solvent cement formulations comprising some or all of tetrahydrofuran, cyclohexanone, methyl ethyl ketone, acetone, a thermoplastic resin, silica, and, a solvent soluble acrylic copolymer associative thickener. The disclosed formulations contain a reduced complement of volatile organic compounds (VOCs) relative to conventional cement formulations, yet are capable of meeting the requirements for regular-, medium-, and heavy-duty applications. The use of specialized associative thickener components confers a required degree of viscosity while enabling a reduction in the concentration of VOCs, such as tetrahydrofuran.

The invention relates to a method for producing a sound and/or thermal insulation element using foamable and/or prefoamed polymer particles which are coated with a binding agent, and preferably with an organic binding agent, and thereafter are subjected to a shaping process during which the polymer particles are bonded and/or sintered to one another, the bonding being caused by way of the binding agent. According to the invention, a non-hydrophilic binding agent is used for coating the foamable and/or prefoamed polymer particles.

The invention furthermore relates to a sound and/or thermal insulation element.

A method for making ornamental trim for use in construction comprising applying a sealing composition having PVC particles in a flowable medium to a cut edge of a foam board, heating the sealing composition to a temperature at which the flowable medium solvates the PVC particles, and cooling the sealing composition to form a continuous sealing cap on the cut edge. A construction component consisting essentially of a foamed cellular board comprising smooth exterior surfaces separated by a cellular network and cut edges, and sealed caps adhered to the cut edges on the foamed cellular board comprising PVC in a polymer matrix. The board has a density of no more than 0.5 g/cm.sup.3, and the cut edges on which the sealed caps are adhered are unmelted edges.

The present disclosure provides methods of improving adhesion of a non-di-(2-ethylhexyl)phthalate (DEHP) plasticized polyvinyl chloride (PVC) to an acrylic-based polymer or an ABS-based polymer. Such methods may comprise blending the acrylic-based polymer or ABS-based polymer with an impact modifier so that a rubber content in the acrylic-based polymer or ABS-based polymer is greater than 12% (w/w). Also provided are components of a device (e.g., a medical device) made by the disclosed methods.

A polymer blend comprising from 20 to 90 parts by weight, based on the total weight of the polymer blend, polyvinyl chloride resin; and from 10 to 80 parts by weight, based on the total weight of the polymer blend, a flexible acrylic polymer is provided. Also provided are films or sheets or pipe made from the polymer blend, a capstock made from the film and a method for preparing a film.

With the binder produced according to the invention, a number of coating products can be produced which adhere to plastics directly and without any chemical or physical pretreatment. Base coats, high-gloss lacquers, metallic lacquers, clear lacquers and effect lacquers can be produced which can be applied directly on plastics; this is an absolute novelty because pretreatment is no longer required. With the binder according to the invention it is also possible to formulate adhesives which guarantee very good bonding between plastics themselves and also paperboard packaging. The invention relates to the binder as well as base coats based on them, one-coat lacquers and adhesives.