摘要:
The invention relates to a device for adjusting a seat back (6) of a vehicle seat (4), in which a drive (9) that carries out adjusting processes is integrated. This acts on stagger gears (10, 22), with which the seat back (6) is moved within a range of inclination (13). A torsion element (24) is provided between the stagger gears (10, 22) that compensates the clearance in the stagger gears (10, 22) within a first range of adjustment (18) of the seat back (6) and functions as support for the driver motor within a further range of adjustment (19) of the seat back (6).
摘要:
The invention relates to a device for adjusting a vehicle seat, the frame structure (4, 5, 6) of which can be adjusted using drive motors (40) having presupported gear units (39), and the vehicle seat is accommodated on two seat rails (1, 2) arranged parallel to each other. The frame structure (4, 5, 6) of the vehicle seat can be adjusted spherically using lifting elements (8, 9, 10) in two planes separated from each other.
摘要:
Composite glass laminates having low tendency to creep contain a softening agent-containing polyvinyl acetal film wherein the polyvinyl acetal has a polyvinyl alcohol content of 12 to 16 weight percent, a molecular weight greater than 110,000 g/mol, and a solution viscosity of more than 80 mPas.
摘要:
The invention relates to the use of films containing plasticiser and based on polyvinyl acetal with a polyvinyl alcohol content in the polyvinyl acetal of less than 18% by weight and low creep tendency to produce photovoltaic modules.
摘要:
Plasticizer-containing films based on polyvinyl acetals having a polyvinyl alcohol content of less than 20% by weight for the production of photovoltaic modules exhibit less water absorption at the edges of the modules. The films preferably have a glass transition temperature Tg of at least 20° C. and/or a plasticizer content of a maximum of 26% by weight.
摘要:
Interlayer films useful for laminated glass contain a polyvinyl acetal (A), at least on plasticizer (B), fumed silica (C) and at least one basic compound (D), wherein the difference of refractive index between fumed silica (C) and plasticized polyvinyl acetal (A+B) is 0.015 or less, and the weight ratio of C/(A+B) is 2.7-60/100.
摘要:
The invention relates to film laminates, formed from at least three layers A, B and C, each layer containing at least one plasticizer and at least one polyvinyl acetal, wherein, at least one of the layers A, B or C contains at least one polyvinyl (iso)acetal having a mean degree of polymerisation of less than 3000, 10 to 25% by weight of polyvinyl alcohol groups and a proportion 50 to 80% by weight of polyvinyl (iso)acetal groups, and wherein layer B has a plasticizer content of less than 32% by weight. The film laminates can be used for the production of glass/film laminate/glass composites for motor vehicles, aircraft, ships, architectural glazings, façade components, or for the production of photovoltaic modules.
摘要:
The invention relates to a cross-linked polyvinyl acetal which is characterized in that it can be obtained from at least one polyvinylacetal (1) which is obtained by reacting at least one polymer (A), which contains a) 1,0 to 99.9 wt. % structural units of formula (1), b.) 0 to 99.0 wt. % structural units of formula (2), c.) 0 to 70.0 wt. % structural formula (3), d.) 0.0001 to 30.0 wt. % structural units of formula (4) respectively in relation to the overall weight of the polymer (A), with at least one compound (B) of formula (5). Furthermore, the present invention relates to methods for the production of the polyvinyl acetal according to the invention as well as its use.
摘要:
The invention relates to a cross-linked polyvinyl acetal which is characterized in that it can be obtained from at least one polyvinylacetal (1) which is obtained by reacting at least one polymer (A), which contains a) 1,0 to 99.9 wt. % structural units of formula (1), b.) 0 to 99.0 wt. % structural units of formula (2), c.) 0 to 70.0 wt. % structural formula (3), d.) 0.0001 to 30.0 wt. % structural units of formula (4) respectively in relation to the overall weight of the polymer (A), with at least one compound (B) of formula (5). Furthermore, the present invention relates to methods for the production of the polyvinyl acetal according to the invention as well as its use.
摘要:
The invention relates to a method for producing polyvinyl alcohol shaped bodies involving thermoplastic processing of at least one polymer (A), of at least one softener and, optionally, of water and/or other additives, whereby polymer (A) contains: a.) 15.0 to 99.9 wt. % structural units of formula (1); b.) 0.0 to 50.0 wt. % structural units of formula (2), and; c.) 0.0 to 50.0 wt. % structural units of formula (3), each with regard to the total weight of polymer (A), whereby radicals R1, R2, R3, R4, R5, and R6 are defined according to the description. The method is characterized in that polymer (A) and the softener are placed into the extruder without being mixed beforehand and that the quantity of water is less than 2 wt. % with regard to polymer (A). The invention also relates to the polyvinyl alcohol shaped bodies, which can be obtained by using the method, and to their use.