公开(公告)号：DE2419968A1

公开(公告)日：1975-12-18

申请号：DE2419968

申请日：1974-04-25

Applicant: BASF AG

Inventor： HORN PETER DIPL CHEM DR ,  WURMB ROLF DIPL CHEM DR ,  WOLFF DIETRICH DIPL CHEM DR ,  SEYDL WOLFGANG DIPL CHEM DR

IPC: C08L67/00 ,  C08G18/42 ,  C08G18/79 ,  C08K5/29 ,  C08K5/3442 ,  C08K5/36 ,  C08L1/00 ,  C08L23/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L59/00 ,  C08L71/00 ,  C08L71/12 ,  C08L77/00 ,  C08L101/00 ,  C08K5/43

Abstract: Thermoplastic molding compositions based on polybutylene terephthalate having a relative viscosity of from 1.3 to 2.0, as measured in a phenol/o-dichlorobenzene mixture at 25 DEG C, and which contain, to increase the thermo-aging stability and toughness and also to improve the processing stability, from 0.1 to 10% by weight, based on the polybutylene terephthalate, of isocyanates or isothiocyanates and/or carbodiimides and/or compounds forming isocyanate groups or isothiocyanate groups and/or carbodiimide groups.

公开(公告)号：DE2605713A1

公开(公告)日：1977-08-25

申请号：DE2605713

申请日：1976-02-13

Applicant: BASF AG

Inventor： WOLFF DIETRICH DIPL CHEM DR ,  SCHOEN ERNST DIPL CHEM DR ,  PALM RICHARD DIPL CHEM DR

IPC: C08G18/79 ,  C08G18/80 ,  C08G18/78

Abstract: Flameproof polyurethane foams are prepd. from OH-gp-contg. polyethers, polyisocyanates, blowing agents, catalysts, stabilisers, and opt. further auxiliaries and additives. The OH gp-contg. polyethers, (I), contains 2 active H atoms and have mol. wt. 2000-10000 (3000-6000). At least 10 (30-80)% of OH gps. are prim. OH gps. The polyisocyanates are used as solns. contg., w.r.t. total wt., 5-40 wt. % amide- and/or acylurea gp.-contg. isocyanuate polyisocyanate, (II), in monomer is di- and/or polyisocyanates, (III), free from amide-, acylurea- and/or isocyanurate gps. (II) contain, by wt., 26 to 0.25 (5 to 0.5)% amide- and/or acylurea gps., 29 to 5 (24 to 19)% isocyanurate gps. and 40 to 20 (30-20)% free NCO gps. Foams have bulk wt. 20-60 (30-50) kg/cm3 and are partic suitable as insulator material. Substitution of urethane-and isocyanurate gp.-contg. polyisocyanates by liquid, homogenous solns. of (II) in (III), improves flameproofness of foams without reducing physical properties, e.g. breaking strength and elongation. Solns. are free from insoluble complexes, have increased NCO-functionality and lower toxicity.

公开(公告)号：DE3226889A1

公开(公告)日：1984-01-19

申请号：DE3226889

申请日：1982-07-17

Applicant: BASF AG

Inventor： WOLFF DIETRICH DIPL CHEM DR ,  HERTEL OTTO DIPL CHEM DR ,  VOGES DIETER DIPL CHEM DR

IPC: C07B61/00 ,  B01J23/00 ,  B01J23/46 ,  C07C67/00 ,  C07C209/00 ,  C07C209/72 ,  C07C211/16 ,  C07C211/36 ,  C07C87/40 ,  C07C85/24

公开(公告)号：DE2403858A1

公开(公告)日：1975-08-21

申请号：DE2403858

申请日：1974-01-28

Applicant: BASF AG

Inventor： FALKENSTEIN GEORG DIPL CHEM DR ,  PALM RICHARD DIPL CHEM DR ,  WOLFF DIETRICH DIPL CHEM DR

IPC: C07D251/34 ,  C07D251/30 ,  C08G18/00 ,  C08G18/34 ,  C08G18/79 ,  C08G18/06 ,  C07C127/22 ,  C07C119/042

Abstract: Stable, liquid, homogeneous solutions of isocyanurate-polyisocyanates containing amide and/or acylurea groups in monomeric diisocyanates and/or polyisocyanates which are free from amide, acylurea and/or isocyanurate groups, are obtained by reacting polybasic carboxylic acids with diisocyanates and/or polyisocyanates to give diisocyanates and/or polyisocyanates containing amide groups and/or acylurea groups, converting the diisocyanates and/or polyisocyanates containing amide and/or acylurea groups by trimerization and, optionally, polymerization, into isocyanurate-polyisocyanates containing amide and/or acylurea groups, and mixing the products with monomeric diisocyanates and/or polyisocyanates.