Peter Bier

Bio: Peter Bier is an academic researcher from Bayer. The author has contributed to research in topics: Polyethylene terephthalate & Alkyl. The author has an hindex of 13, co-authored 64 publications receiving 710 citations.

Poly(ethylene/alkylene) terephthalates which crystallize rapidly

Abstract: Terephthalic copolyesters, the diol component of which mainly consists of ethylene glycol units, crystallize more rapidly than pure polyethylene terephthalate and can be moulded in a way comparable to polybutylene terephthalate.

Polyester compositions which crystallize rapidly

Abstract: This invention relates to polyalkylene terephthalates which crystallize rapidly, and process of making such compositions and a process of using such compositions in injection molding. The compositions comprise polyalkylene terephthalates with intrinsic viscosities in excess of about 0.4 dl/g in 1:1 phenol/tetrachloroethane at 25° C. and at least about 0.5 wt. %, based on the weight of resin and additive, of an aromatic carboxylic acid ester. These compositions may be prepared by intimately mixing the ingredients, for example by extrusion. These compositions, particularly those wherein the polyester consists essentially of polyethylene terephthalate, may be injection molded with mold temperatures less than about 120° C. and still retain a significant degree of crystallinity even with short mold residence times.

Molded articles of crystalline poly (ethylene/alkylene) terephthalates which crystallize rapidly

Abstract: Terephthalic copolyesters, the diol component of which consists of ethylene glycol and 2.2-diethyl propane-1.3-diol crystallize more rapidly than pure polyethylene terephthalate and can be molded in a way comparable to butylene terephthalate.

Uv-stabilizers for siloxane systems

Abstract: The invention relates to a non-volatile UV-stabilizing mixture for siloxane paint systems, containing hydrolyzable silanes which in turn contain hydroxybenztriazols and epoxide groups. The resulting UV-stabilized paint systems are particularly suitable for use as anti-UV coatings for thermoplastics, especially aromatic polycarbonates.

Thermoplastic moulding compositions

Abstract: The present invention relates to thermoplastic moulding compositions of (A) thermoplastic polycarbonates, if appropriate mixed with (B) thermoplastic polyalkylene terephthalates and, if appropriate, additionally with (C) elastomeric graft polymers, characterized in that they contain (D) a terpolymer of acrylates, vinyl esters and unsaturated nitriles.

Modified copolyesters and improved multilayer reflective films

Abstract: A multilayered polymer film includes a first set of optical layers and a second set of optical layers. The first set of optical layers is made from a polyester which is often birefringent. The polyesters of the first set of optical layers typically have a composition in which 70-100 mol % of the carboxylate subunits are first carboxylate subunits and 0-30 mol % are comonomer carboxylate subunits and 70 to 100 mol % of the glycol subunits are first glycol subunits and 0 to 30 mol % of the glycol subunits are comonomer glycol subunits, where at least 0.5 mol % of the combined carboxylate and glycol subunits are comonomer carboxylate or comonomer glycol subunits. The multilayered polymer film may be used to form, for example, a reflective polarizer or a mirror.

Polyarylene sulfide resin composition

Abstract: A polyarylene sulfide resin composition has an excellent moldability to produce moldings excellent in mechanical properties without corroding or staining metal parts such as molds during molding, and comprises 100 parts by weight of a polyarylene sulfide resin (A) and 0.05 to 3 parts by weight of zinc oxide whiskers (B).

Memory module with memory stack and interface with enhanced capabilities

Abstract: A memory module, which includes at least one memory stack, comprises a plurality of DRAM integrated circuits and an interface circuit. The interface circuit interfaces the memory stack to a host system so as to operate the memory stack as a single DRAM integrated circuit. In other embodiments, a memory module includes at least one memory stack and a buffer integrated circuit. The buffer integrated circuit, coupled to a host system, interfaces the memory stack to the host system so to operate the memory stack as at least two DRAM integrated circuits. In yet other embodiments, the buffer circuit interfaces the memory stack to the host system for transforming one or more physical parameters between the DRAM integrated circuits and the host system.

Process for producing multilayer molded article

Abstract: A method for producing a multilayer molded article in which an skin material having nap on the outer surface thereof is integrally molded with a substrate of a synthetic resin, using a mold comprising a pair of male and female mold halves. In this method, after the fabric skin material and the molten resin are clamped in the mold and primary cooling is carried out, the mold is opened halfway to form a predetermined gap between the mold halves, and the molten synthetic resin undergoes secondary cooling and hardens while the mold is held in the half-open state. In the present invention, the time period for the operation to open the mold halfway is set at one second or less. By limiting the half-opening operation time period to the short period of one second or less, recovery of the nap is reliably achieved without the nap tending to stay flattened. Moreover, because the transition from the primary cooling step to the secondary cooling step occurs in a short period of time, problems such as inadequate cooling of the molten synthetic resin do not occur.