4-substituted bis (2,6-diisopropylphenyl)- carbodiimides, their

Details 4-substituted bis (2,6-diisopropylphenyl)- carbodiimides, their 4-substituted bis (2,6-diisopropylphenyl)- carbodiimides, their

1996-01-30

1997-04-15

O'Sullivan, Peter

Organic compounds -- part of the class 532-570 series

Organic compounds

Isocyanate esters

252401, 252403, 524195, 525907, 528 48, 554 5, 554 6, 560 3, 560 4, 564252, C07C26512

Patent

active

056211384

ABSTRACT:
4,4'-disubstituted bis-(2,6-diisopropylphenyl)carbodiimides of the formula (I) ##STR1## where R is 1-methyl-1-phenylethyl, phenoxy or tert-butyl, a process for their preparation, their use as stabilizers against hydrolytic degradation of polyaddition and polycondensation products containing ester groups, and the novel 4-(1-methyl-1-phenylethyl)-2,6-diisopropyl-, 4-phenoxy-2,6-diisopropyl- and 4-tert-butyl-2,6-diisopropylphenyl isocyanates which can be used for their preparation.

REFERENCES:
patent: 2853473 (1958-09-01), Campbell et al.
patent: 2853518 (1958-09-01), Balon
patent: 3193523 (1965-07-01), Neumann et al.
patent: 3522303 (1970-07-01), Ulrich
patent: 3632620 (1972-01-01), Kober et al.
patent: 3644456 (1972-02-01), Uhlrich
EPO Search Report, Feb. 16, 1994.

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