Patent AT-411761-B (AT)
Title: Aminoplastic molding material mixtures containing polytriazine ethers and siloxane compounds useful for fireproofing, in the automobile and construction industries, for panels, pipes, coatings, and injection molded parts
IPC: C08G73/06
Filed: 2002-06-14
Granted: 2004-05-25
Abstract: Aminoplastic molding material mixtures comprising meltable 20-1000-core polytriazine ethers, siloxane group containing sequences, siloxane group containing polyester and polyether sequences, and sequences based on alkylene oxide adducts, and phenol ether sequences are new.  Aminoplastic molding material mixtures comprising meltable 20-1000-core polytriazine ethers, containing the triazine segment of formula (I). R1 = NH2, NH-CHCHR2-O-R3, NH-CHR2-O-R4-OH, phthalimido-, succinimido-, -NH,CHCHR2-O-R4-O-CHR2-NH, -NH-CHR2-NH-, -NH-CHR2-O-CHR2-NH-; R2 = H, 1-7C alkyl; R3 = 1-18 C alkyl, H; R4 = 2-18C alkyl, -CH(CH3)-CH2-O-(2-12C alkyl)-O-CH2-CH(CH3)-, -CH(CH3)-CH2-O-(2-12C aryl)-O-CH2-CH(CH3)-, -(CH2-CH2-O-CH2-CH2)n-, -(CH2-CH(CH3)-O-CH2-CH(CH3))n-, -(-O-CH2-CH2-CH2-CH2)n-, -((CH2)2-8-O-CO (6-12C alkyl)-CO-O-(CH2)2-8)n-, -((CH2)2-8-O-CO (6-12C aryl)-CO-O-(CH2)2-8)n-, siloxane group containing sequences of type (III), siloxane group polyester sequences of type -((X)r-O-CO-(Y)s-CO-O-(X)r)-, siloxane group containing polyether sequences of type (VII), sequences based on alkylene oxide melamine adducts of type 2-amino-4,6-di-2-4C-alkyleneamino-1,3,5-triazine- or phenolether sequences based on divalent phenol and 2-8C diols of type (2-8C Alkyl)-O-(6-18C Aryl)-O-(2-8C Alkyl); R5 = 1-4C alkyl, H; n = 1-200; X =  -((CH2)2-8-O-CO (6-12C alkyl)-CO-O-(CH2)2-8)n- or -((CH2)2-8-O-CO (6-14C aryl)-CO-O-(CH2)2-8)n-; Y = (V) or (VI); r, s = 1-70; y = 3-50; a = 1-4. The triazine ethers are linked via bridge members NH-CHR2-O-R4-O-CHR2-NH- and NH-CHR2-NH- and optionally NH-CH2R2-O-CHR2-NH- bonded to 29-1000-core polytriazine ethers of linear and/or branched structure, where the mole ratio of the substituents R3:R4 = 20:1 to 1:20, the number of triazine segment bonds via the bridge member -NH-CHR4-O-R4-O-CHR3-NH- = 5-95 mole%, and the aminoplastic-molding material can contain up to 50 wt.% of other reactive polymer of ethylene copolymer type, optionally modified maleic anhydride copolymer, poly(meth)acrylate, polyamide, polyester and/or polyurethane, up to 20 wt.% diol of type HO-R4-OH, and up to 5 wt.%, especially up to 2 wt.% of stabilizers, UV absorber, curing agent and/or adjuvant.  Independent claims are included for: (1) a process for preparation of aminoplast molding materials (AMM) in which the AMM consist of mixtures of meltable 20-1000-core polytriazine ethers, where in the polytriazine ethers the triazine segment is of formula (I) and where after a multistep process in which in the first step a precondensate is obtained from 1-8C aldehydes and triazine derivatives of formula (XI) with R1, R2 = as above, R5 = NH-CHR2-OH by reaction of 1-8C alcohols in neutral or weakly acid medium at 25-150degreesC and 0.1-5 bar pressure, and the substituted diazine derivative is condensed over a dwell time of 5-15 minutes at 150-250degreesC and 0.1-15 bar, the salt formed is separated at pH 7-10, the melt of aminotriazine ether is dissolved at 70-150degreesC in 70-150 wt.% of 3-8C alcohols, and the insoluble portion, after cooling to 15-40degreesC is separated off and the added 3-6C alcohol is evaporated off at 70-140degreesC to a residual content of 5-20 wt.%. In step 2, the 1-8C-alkyl-oxa-1-8C alkyleneamino substituted triazine derivative, via partial ether interchange (sic) with diols of type HO-R4-OH and/or partial reaction with bisepoxides of type (XII): R6 = 2-18C alkyl, -(CH2-CH2-O-CH2-CH2)n-, -(CH2-CH(CH3)-O-CH2-CH(CH3))n-, -(-O-CH2-CH2-CH2-CH2)n-, -((CH2)2-8-O-CO (6-12C alkyl)-CO-O-(CH2)2-8)n-, -((CH2)2-8-O-CO (6-12C aryl)-CO-O-(CH2)2-8)n-; n = 1-200; siloxane group containing sequences of type (III), siloxane group containing polyester sequences of type -((X)r-O-CO-(Y)s-CO-O-(X)r)-; X = as above; Y = (V) or (VI); r = 1-70; s = 1-70; and y = 3-50; siloxane group containing polyether sequences of type (X); R2 = H, 1-4C alkyl and y = 3-50; sequences based on alkylene oxide melamine adducts of type 2-amino-4,6-di-2-4C alkyleneamino-1,3,5-triazine sequences, phenol sequences based on divalent phenol and 2-8C diols of type (