Abstract:
PROBLEM TO BE SOLVED: To produce the subject product having a high hardness and a low coefficient of thermal expansion, further having an extremely smooth surface, useful as a glass substitute for a car by reacting an isocyanate with a specific compound under a specified condition. SOLUTION: When (A) an isocyanate and (B) a compound reactive with the component A are reacted in the presence or absence of (C) a catalyst, (D) an adjuvant and/or (E) an additive, the reaction of the component A with the component B is carried out under the pressure of 1-20 MPa in a mold. Preferably, the reaction is carried out at 20-220 deg.C mold temperature. Especially, it is preferable that the reaction of the components A with B is carried out in the mold having 20-140 deg.C mold temperature for 0.5-15 min, and, thereafter, the partially reacted product is compressed in the same or another mold having 100-220 deg.C mold temperature under 1-20 MPa pressure.
Abstract:
PROBLEM TO BE SOLVED: To obtain a transparent molded polyisocyanate polyaddition product usable as a glass substitute. SOLUTION: This transparent molded polyisocyanate polyaddition product is obtained by using a mixture having average functional value larger than 3 and 300-950 mg KOH/g average hydroxyl number as (b) a compound having reactivity to an isocyanate in the presence of (a) an isocyanate, (b) a compound having reactivity to an isocyanate, optionally (c) a catalyst and (d) an auxiliary and/or an additive.
Abstract:
The invention concerns biologically degradable polyester amides P1 obtainable through reaction of a mixture consisting essentially of the following: (a1) a mixture consisting essentially of: 35-95 mol % adipic acid or ester-forming derivatives thereof or mixtures thereof, 5-65 mol % terephthalic acid or ester-forming derivatives thereof or mixtures thereof, and 0-5 mol % a compound containing sulphonate groups (the sum of the individual molar percentages is 100); (a2) a mixture consisting essentially of: (a21) 99.5-0.5 mol % a dihydroxy compound chosen from the group comprising C2-C6 alkane diols and C5-C10 cycloalkane diols, (a22) 0.5-99.5 mol % an amino C2-C12 alkanol or an amino-C5-C10 cycloalkanol, (a23) 0-50 mol % a diamino C1-C8 alkane; and (a24) 0-50 mol % a 2,2`-bisoxazoline of general formula (I), in which R is a single bond, a (CH2)q-alkylene group in which q = 2, 3 or 4, or a phenylene group (the sum of the individual molar percentages is 100 and the molar ratio of a1 to a2 is in the range 0.4:1 - 1.5:1). The polyester amides P1 will have a molecular weight (Mn) in the range 4000-40,000 g/mol, a viscosity number in the range 30-350 g/ml (measured in o-dichlorobenzene/phenol (weight ratio 50/50) at a concentration of 0.5 wt.% polyester amide P1 at a temperature of 25 DEG C) and a melting point in the range 50-220 DEG C; and a quantity of a compound D equivalent to 0-5 mol % of the molar quantity of components (a1) must also be used for the production of the polyester amides P1, said compound D having at least three groups capable of ester formation. The invention also concerns other biologically degradable polymers and thermoplastic moulding materials, processes for manufacturing the same, the use thereof for producing biologically degradable moulded articles and adhesives, and biologically degradable moulded articles, foams and blends with starch which can be obtained from the polymers or moulding materials according to the invention.
Abstract:
The invention relates to a process for preparing self-releasing, compact or cellular moulded bodies optionally containing reinforcing agents and made of polyisocyanate polyaddition products by reacting a) organic and/or modified organic polyisocyanates with b) at least one compound with at least two reactive hydrogen atoms and a molecular weight of 500 to 9,000 and optionally c) chain extension and/or cross-linking agents in the presence of d) alkyl and/or alkenyl succinic acid monoamides, -monoamides, poly(alkyl succinic acid)- and/or poly(alkenyl succinic acid)-polyamides, -polyimides, -monoamide monoimides, -polyamide imides, -amide polyimides and- polyamide polyimides or mixtures thereof as internal mould release agents, and also in the presence or absence of e) catalysts, f) blowing agents, g) reinforcing agents, h) auxiliary agents, in an open or closed moulding tool, optionally under compression. The invention also relates to the use of alkyl- and/or alkenyl succinic acid amides and/or imides (d) as internal mould release agents for the preparation of moulded bodies made of polyisocyanate polyaddition products.
Abstract:
A process for the production of compact, transparent polyisocyanate-polyaddition products by reacting (a) isocyanates with (b) compounds which react with isocyanates, optionally in the presence of catalysts and/or additives etc., in which (b) is a mixture with an average functionality of more than 3 and an average hydroxyl number of 300-950 mg KOH/g. Independent claims are also included for (a) compact, transparent polyisocyanate-polyaddition products obtained by this process; and (b) sun roofs, front, rear and side windows for cars or aircraft, and lamp covers containing these products.
Abstract:
Biodegradable polyesteramides as defined in the specification are obtained by reacting a mixture consisting essentially ofa1) a mixture consisting essentially of35 to 95 mol % of adipic acid or ester-forming derivatives thereof,5 to 65 mol % of terephthalic acid or ester-forming derivatives thereof, and0 to 5 mol % of a compound containing sulfonate groups,a2) a mixture consisting essentially of95.5 to 0.5 mol % of a dihydroxy compound,0.5 to 99.5 mol % of an amino-C2-C12-alkanol or an amino-C5-C10-cycloalkanol,0 to 50 mol % of a diamino-C1-C8-alkane, and0 to 50 mol % of a 2,2'-bisoxazoline of the formula I wherein R1 is as set forth in the specification, anda3) 0 to 5 mol %, based on a1), of a compound D as set forth in the specification;and other biodegradable polymers and thermoplastic molding compositions, their manufacture and their use for producing biodegradable moldings, adhesives, foams, and coatings.
Abstract:
The invention relates to a process for preparing self-releasing, compact or cellular moulded bodies optionally containing reinforcing agents and made of polyisocyanate polyaddition products by reacting a) organic and/or modified organic polyisocyanates with b) at least one compound with at least two reactive hydrogen atoms and a molecular weight of 500 to 9,000 and optionally c) chain extension and/or cross-linking agents in the presence of d) alkyl and/or alkenyl succinic acid monoamides, -monoamides, poly(alkyl succinic acid)- and/or poly(alkenyl succinic acid)-polyamides, -polyimides, -monoamide monoimides, -polyamide imides, -amide polyimides and- polyamide polyimides or mixtures thereof as internal mould release agents, and also in the presence or absence of e) catalysts, f) blowing agents, g) reinforcing agents, h) auxiliary agents, in an open or closed moulding tool, optionally under compression. The invention also relates to the use of alkyl- and/or alkenyl succinic acid amides and/or imides (d) as internal mould release agents for the preparation of moulded bodies made of polyisocyanate polyaddition products.
Abstract:
Biodegradable polyesteramides as defined in the specification are obtained by reacting a mixture consisting essentially ofa1) a mixture consisting essentially of35 to 95 mol % of adipic acid or ester-forming derivatives thereof,5 to 65 mol % of terephthalic acid or ester-forming derivatives thereof, and0 to 5 mol % of a compound containing sulfonate groups,a2) a mixture consisting essentially of95.5 to 0.5 mol % of a dihydroxy compound,0.5 to 99.5 mol % of an amino-C2-C12-alkanol or an amino-C5-C10-cycloalkanol,0 to 50 mol % of a diamino-C1-C8-alkane, and0 to 50 mol % of a 2,2'-bisoxazoline of the formula I wherein R1 is as set forth in the specification, anda3) 0 to 5 mol %, based on a1), of a compound D as set forth in the specification;and other biodegradable polymers and thermoplastic molding compositions, their manufacture and their use for producing biodegradable moldings, adhesives, foams, and coatings.
Abstract:
Biodegradable polyesteramides as defined in the specification are obtained by reacting a mixture consisting essentially ofa1) a mixture consisting essentially of35 to 95 mol % of adipic acid or ester-forming derivatives thereof,5 to 65 mol % of terephthalic acid or ester-forming derivatives thereof, and0 to 5 mol % of a compound containing sulfonate groups,a2) a mixture consisting essentially of95.5 to 0.5 mol % of a dihydroxy compound,0.5 to 99.5 mol % of an amino-C2-C12-alkanol or an amino-C5-C10-cycloalkanol,0 to 50 mol % of a diamino-C1-C8-alkane, and0 to 50 mol % of a 2,2'-bisoxazoline of the formula I wherein R1 is as set forth in the specification, anda3) 0 to 5 mol %, based on a1), of a compound D as set forth in the specification;and other biodegradable polymers and thermoplastic molding compositions, their manufacture and their use for producing biodegradable moldings, adhesives, foams, and coatings.