摘要:
There is described a low-foaming, nonsilicone, aqueous textile auxiliary composition comprising(a) a homopolymer of an ethylenically unsaturated sulfonic or carboxylic acid or an anhydride thereof,(b) a nonionic surfactant of formula ##STR1## wherein R is an aliphatic radical of at least 8 carbon atoms,R.sub.1 is hydrogen, C.sub.1 -C.sub.8 alkyl, a cycloaliphatic radical of at least 5 carbon atoms, styryl, an unsubstituted or halogen substituted C.sub.1 -C.sub.10 alkylisocyanato or an unsubstituted or by a hetero atom substituted cycloalkylisocyanato or cycloalkenylisocyanato radical,"alkylene" denotes an alkylene radical of 2 to 4 carbon atoms, andp is an integer from 2 to 60, and optionally(c) a hydrotropic agent.The textile auxiliary composition is suitable for use as dispersants and for wetting, washing and/or bleaching fiber materials.
摘要:
The invention described novel compounds of formula ##STR1## wherein the general symbols are as defined in claim 1, as stabilisers for protecting organic materials, in particular polymers and lubricants, against thermal, oxidative or light-induced degradation.
摘要:
This invention described novel compounds of formula ##STR1## wherein the general symbols are as defined in claim 1, as stabilisers for protecting organic materials, in particular polymers and lubricants, against thermal, oxidative or light-induced degradation.
摘要:
The invention described novel compounds of formula ##STR1## wherein the general symbols are as defined in claim 1, as stabilisers for protecting organic materials, in particular polymers and lubricants, against thermal, oxidative or light-induced degradation.
摘要:
Disclosed is a foamable polymer preparation comprising, relative to the total weight of (a), (b) and (c), (a) 19.9 to 89.9% by weight of at least one polymer which single polymer or group of polymers has (i) a water absorption of 0.5% or less, and (ii) a softening point and/or a dropping point in the range of 60 to 170° C., (b) 10 to 80% by weight of at least one functional additive which is (b1) a zeolite and/or (b2) an oxygen scavenger, and (c) 0.1 to 5.0% by weight of heat-expandable microspheres containing a liquid and/or gaseous hydrocarbon encapsulated in a gas-tight thermoplastic shell that expand when heated to the softening point and/or the dropping point of said at least one polymer (a), Furthermore disclosed is a foamed composition obtainable by heating the foamable polymer preparation and a molded article prepared from said foamed composition.
摘要:
A description is given of a process for the production of polyolefin hollow articles, which comprises charging the polyolefin with a stabilizer combination, comprising (A) at least one compound from the group of the organic phosphites or phosphonites, and (B) at least one compound from the group of the 3-arylbenzofuranones, filling this mixture into a mold, heating this mold in an oven to above 280.degree. C., such that the stabilised polyolefin fuses, rotating the mold around at least 2 axes, the plastic spreading to the walls, and cooling the mold while still rotating, opening it and taking the resultant hollow article out.
摘要:
The present invention relates to polymer compositions comprising (a) a polymer containing hydroxyl alkylene repeating units and (b) an additive selected from compounds of the formulae (1) to (6) wherein Ra1, Ra2, Ra3 and Ra4 can be the same or different and independently represent a group selected from the moieties having formula (A) or formula (B), wherein Rb is selected from hydrogen, C1-6 alkyl, C1-6 alkoxy and —CO—C1-4 alkyl.
摘要:
The invention relates to a polyolefin composition comprising a water releasing additive comprising hydrated inorganic or organic compounds as well as to a process for prevention of discoloration in polyolefins.
摘要:
The invention relates to the use of sterically hindered piperidine derivatives (HA(L)S) in pigmented polyolefin polymers for the reduction of warpage effects which are induced by light. Preferably, such sterically hindered piperidine derivatives/amines (HA(L)S) are used in various combinations with UV absorbers, processing stabilisers, phenol-type antioxidants and acid scavengers normally used for the purpose of improved lightfastness and improved mechanical properties. In particular the invention relates to a method to reduce the warpage effect which is induced by light in polyolefin polymers, comprising the steps of combining in the polyolefin polymer at least one organic pigment and at least one sterically hindered piperidine derivative (HA(L)S).
摘要:
Foamable polymer preparation comprising (a) 19.9 to 89.9% by weight of a polymer, (b) 10 to 80% by weight of a desiccant, (c) 0.1 to 5.0% by weight of a foaming agent comprising a hydrogen carbonate metal salt and a component selected from the group consisting of a polycarboxylic acid containing 2 to 10 carbon atoms and at least 2 carboxyl groups, a metal salt thereof and an ester of said polycarboxylic acid in which at least one of the carboxyl groups have been esterified with an alcohol containing 1 to 6 carbon atoms; wherein the weight percentages relate to the weight of the foamable polymer preparation.