摘要:
A belt force limiter for a vehicle seat belt is mounted fixed to the vehicle by one end and, at its opposite free end, secures the shoulder strap approximately at shoulder level. The shoulder strap is displaced forward in relation to the vehicle seat with a limited amount of travel by the belt force limiter when tensile loading occurs due to a crash, tensile energy being absorbed in the belt force limiter. The belt force limiter has a pivot lever which is linked to an energy-absorbing component and in the position of rest is aligned approximately vertically and whose free end can be pivoted forward by the tension on the shoulder strap in the event of a crash, as a result of which the energy-absorbing component is deformed in an energy-absorbing manner.
摘要:
The invention relates to indicators for determine the proton concentration of strongly alkaline aqueous solutions which contain compounds of the formula (I) ##STR1## in which ##STR2##
摘要:
A thermoplastic molding material consists of A) 30-80% by weight, based on A+B, of an elastomeric grafting base A defined in more detail and B) 20-70% by weight, based on A+B, of a shell grafted onto the grafting base A and defined in more detail and C) 0.001-1 part by weight, based on 100 parts by weight of A+B, of .alpha.-tocopherol and D) from a half to ten times the amount, based on C, of a thiodipropionic ester selected from dilauryl and distearyl thiodipropionate.
摘要:
A process for the continuous preparation of polymers from reaction components, in particular of copolymers of styrene and acrylonitrile, by bulk or solution polymerization, where the reaction components are passed through the tubes of a recycle reactor, the recycle reactor has at least one tube bundle reactor with straight tubes around which a liquid heat-transfer medium flows, and each tube bundle reactor consists of at least two shell and tube heat exchangers which are connected together by at least one intermediate mixing section. Moreover the volume of the shell and tube heat exchangers is at least 50% of the total volume of the arrangement. The intermediate mixing sections consist of tubes with static mixing elements, around which tubes a heat-transfer medium flows.
摘要:
Fluorescent pigments contain essentially a polymer matrix based on polymethyl methacrylate and a nonpolar fluorescent dye from the coumarin or perylene series, the polymer matrix being a crosslinked polymethacrylate or polyacrylate prepared by suspension polymerization.
摘要:
Thermoplastic molding materials preparedA) from 35 to 99.5% by weight of a matrix copolymer (A) ofa.sub.1) from 50 to 95% by weight of styrene and/or .alpha.-methylstyrene,a.sub.2) from 5 to 50% by weight of acrylonitrile anda.sub.3) from 0 to 20% by weight of further comonomersB) from 0 to 50% by weight of a particulate graft copolymer (B) which is insoluble in (A), has a median particle diameter of from 0.03 to 1 .mu.m and preparedb.sub.1) from 30 to 80% by weight of a core comprising an elastomeric polymer having a glass transition temperature of less than -10.degree. C. andb.sub.2) from 20 to 70% by weight of a graft shell comprising a polymer which is compatible or partly compatible with (A)andC) from 0.5 to 30% by weight of a particulate crosslinked copolymer (C) which is insoluble in (A), has a median particle diameter of from 0.5 to 50 .mu.m and comprisesc.sub.1) from 50 to 89.95% by weight of styrene and/or .alpha.-methylstyrene,c.sub.2) from 10 to 50% by weight of acrylonitrile,c.sub.3) from 0.05 to 5% by weight of a polyfunctional, crosslinking monomer,c.sub.4) from 0 to 10% by weight of a monomer which contains acidic or basic groups andc.sub.5) from 0 to 20% by weight of further comonomers.
摘要:
In a cell-oriented communication network (ATMN), respective control cells are inserted at predetermined time intervals into two message cell streams redundantly transmitted via a path pair (EP,AP). The control cells respectively contain a sequence number that varies continuously from control cell to control cell. The appearance of control cells is separately monitored for the two message cell streams at the end of the path pair. Which of the two message cell streams is the leading message cell stream is thereby first determined on the basis of the sequence numbers appearing in the message cell streams. The leading message cell stream is then delayed until the appearance of identical sequence numbers in the message cell streams.
摘要:
The present invention relates to aminoacrylates which have a viscosity of 200 to 3000 mPa.s at 23.degree. C. and 100% solids, a content of olefinic double bonds (calculated as C=C, molecular weight=24) of 8 to 20% by weight and a nitrogen content of 0.4 to 2.0% by weight, and which are prepared by an addition reaction by reacting at a molar ratio of primary amino groups from component a) to olefinic double bonds from component b) of 0.05:1 to 0.25:1a) mono- or diamines having a molecular weight of 31 to 300 and having aliphatically bound amino groups withb) acrylic esters of polyhydric alcohols which have been prepared at a COOH/OH equivalent ratio of 0.8:1 to 1:1 fromb1) acrylic acid andb2) ether-alcohols which have 3 or 4 hydroxyl groups and a molecular weight of 136 to 1000, possess at least one ethylene oxide unit --CH.sub.2 --CH.sub.2 --O-- as part of the ether structure and do not contain propylene oxide units --CH.sub.2 --CH(CH.sub.3)--O--.The present invention also relates to a process for the preparation these aminoacrylates.
摘要:
A radically curable coating composition containing) 50 to 95 parts by weight of an unsaturated polyester component having a viscosity at 23.degree. C. of 1,000 to 15,000 mPa.s, B) 5 to 50 parts by weight of compounds containing (meth)acryloyl groups and/or vinyl ether groups, C) 0.01 to 0.3 wt. %, based on the total weight, of waxes and/or paraffins having a melting point of 35+ to 100.degree. C. and D) 0 to 10 wt. %, based on the total weight, of at least one plasticizer or carbamic acid resin, and the use of the coating composition for coating substrates, in particular wood substrates.
摘要:
Abstract of the disclosure: A particulate graft copolymer comprises 30 to 90% by weight of at least one elastomeric grafting base A having a weight average particle size of from 30 to 1,000 nm comprising, based on A, 85 to 99.8% by weight of at least one alkyl acrylate A11 having 1 to 8 carbon atoms in the alkyl radical, 0.1 to 5% by weight of at least one polyfunctional, crosslinking monomer A12, and 0.1 to 10% by weight of at least one hydroxyalkyl acrylate or hydroxyalkyl methacrylate A13 or at least 50% by weight of one or more dienes A111, up to 50% by weight of one or more ethylenically unsaturated monomers A112, and 0.1 to 10% by weight of at least one hydroxyalkyl acrylate or hydroxyalkyl methacrylate A113 and10 to 70% by weight of a graft sheath B comprising, based on B, up to 99.9% by weight of at least one aromatic vinyl monomer B1, up to 99.9% by weight of at least one polar, copolymerizable, ethylenically unsaturated monomer B2, and 0.1 to 20% by weight of at least one monomer B3 containing one or more basic or acid groups.