摘要:
The invention relates to compounds of the group of so-called sterically hindered amines (HALS) which are substituted by phospho groups. The invention also relates to flame retardant compositions wherein these compounds are added to the polymer substrate.
摘要:
The present invention relates to flame retardant polymer compositions which comprise mixtures of phosphinic acid salts and dihydro-oxa-phospho-phenantrene derivatives. The compositions are especially useful for the manufacture of flame retardant compounds based on polycondensates like polyesters, polyamides and polycarbonates.
摘要:
The present invention relates to flame retardant polymer compositions which comprise mixtures of phosphinic acid salts and dihydro-oxa-phospho-phenantrene derivatives. The compositions are especially useful for the manufacture of flame retardant compounds based on polycondensates like polyesters, polyamides and polycarbonates.
摘要:
A method of mixing polluted air with less polluted air to provide moderately polluted air. The method includes dividing air from a roadway region into a lower part and an upper part, and permitting at least a portion of the upper part to flow substantially in one or more flow directions toward a leeward region. The method also includes directing the lower part substantially upwardly in a direction substantially transverse to the flow direction to intersect with the upper part and to mix the polluted air with the less polluted air, to provide the moderately polluted air proximal to the leeward area.
摘要:
A ply includes a fibrous nonwoven web fabric forming a foundational structure, wherein the foundational structure includes fibers forming first pores and is partially filled with particles, wherein the particles at least partially fill the first pores so as to form regions filled with particles, wherein the particles in the filled regions form second pores, and wherein an average diameter of the particles is greater than an average pore size of more than 50% of the second pores.
摘要:
An attachment part for a mechanical connection of a rear wall to a first and a second side wall, a base wall and a ceiling wall of a cabinet includes a plurality of resilient tongues each integrally formed on the attachment part and each having a latching lug, wherein the attachment part can be attached to an inside of the rear wall at each one of four corners of the rear wall at a right angle with the rear wall, and wherein the first and the second side wall, the base wall and the ceiling wall are each firmly latchable to the latching lugs.
摘要:
The invention relates to hydroxylamine esters and polymerizable compositions comprising these hydroxylamine esters and an ethylenically unsaturated monomer or oligomer and methods for achieving a controlled increase in the molecular weight of polyethylene.
摘要:
The invention relates to a process and compositions suitable for reducing by heat the molecular weight of polypropylene, propylene copolymers or polypropylene blends. Azo compounds bearing different substituents are added to the polymers.
摘要:
The present invention relates to a method for the radical polymerization or copolymerization of ethylene at high pressures using a hydroxylamine ester as radical initiator. The hydroxylamine esters according to the invention are suitable initiators for the high pressure polymerization of ethylene leading to high molecular weight polyethylenes with narrow molecular weight distributions (Polydispersed Index PD=1.2−4.5).
摘要:
The instant invention relates to a process for crosslinking unsaturated polymer resins as e.g. unsaturated polyesters using hydroxyamine esters as radical source. Further aspects of the invention are a composition comprising unsaturated polymer resins as e.g. unsaturated polyester resins and a hydroxylamine ester and the use of hydroxylamine esters for crosslinking unsaturated polymers.