Bayer Aktiengesellschaft

Other

Basf Aktiengesellschaft

Samsung Electro-Mechanics Co., Ltd.

Hoechst Aktiengesellschaft

Andreas Greiner

Walter Heitz

Sylke Haremza

Thomas Heitz

Norbert Hampp

Peter Simon

Keun-Yong Lee

Jae-Choon Cho

Jun-Rok Oh

Do-Yeung Yoon

Lutz Hesse

Moon-Soo Park

The present invention relates to a poly(p-xylylene)-based polymer having a low dielectric constant suitable for low loss dielectrics (LLD), and an insulating material, a printed circuit board and a functional element using the same. More particularly, the poly(p-xylylene)-based polymer includes at least one repeat unit expressed by the following formula (1): 

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An ophthalmologic implant for the prophylaxis or treatment of capsule opacification after implantation and completion of wound healing of a synthetic lens is described. This treatment can be repeated if necessary.

Ophthalmologic implant

A process for the production of a molding, fiber or film which can be caused to fluoresce by an electrical voltage which comprises using linear mixtures comprising a fluorescent dye from the perylene series and a thermoplastic polymer having a degree of crystallinity of less than 10%.

Use of thermoplastic electroluminescent materials which are stable for

The invention relates to a process for preparing compounds of the formula (I) ##STR1## by pyrolysis, where n is the degree of polymerization and is.gtoreq.2. For this purposes compounds of the formula (II)

Process for preparing polymers of p-xylylene from p-xylylene diesters

Vinylene copolymers composed of recurrent structural units of formula I ##STR1## wherein Ar denotes an aromatic or heterocyclic group, R denotes an inert substituent and n stands for an integer with a value from 0-8 and processes for their preparation.

Polymerization of halo aryl olefin

Vinylene copolymers composed of recurrent structural units of formula I ##STR1## wherein Ar denotes an aromatic or heterocyclic group, R denotes an inert substitutent and n stands for an integer with a value from 0-8 and processes for their preparation.

Catalytic/solvent preparation of vinylene copolymers from ethylene and

Vinylene copolymer

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Marburg, Germany

Andreas Greiner