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Inventor: Howell; Frederick H.
Address: Atherton, GB2
No. of patents: 13
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4924015 |
Substituted anthraquinones and use thereof in epoxy resins |
May 8, 1990 |
| Anthraquinones having .alpha.,.alpha.-(dialkyl)alkyl groups which are functionally substituted, for example by --COOH or --CONH--NH.sub.2, are described. Compositions which contain such anthraquinones, an aminoalcohol and an epoxy resin with or without a hardener are suitable for prepari |
| 4904815 |
Phenols and their production |
February 27, 1990 |
| New phenols are described containing an alkyl substituent containing a functional group; as well as a process for the production of such phenols. The new phenols are useful e.g. as stabilizers in organic or aqueous systems. |
| 4835323 |
Hydroquinones |
May 30, 1989 |
| New hydroquinones have the formula: ##STR1## wherein p is 1 or 2 and q is 0 or 1, provided that p+q is 1 or 2; R is a residue of formula: ##STR2## wherein Q is (i) -OX or (ii) -PO(OR.sub.11)((O).sub.x R.sub.11); and salts thereof with organic or inorganic acid bases.The group |
| 4716248 |
Aminocyclohexyl-substituted, branch alkylamines |
December 29, 1987 |
| New compounds having the formula:wherein p is 1 or 2 and the residues QNH.sub.2 are the same or different and each is a residue of formula: ##STR1## wherein n is an integer from 1 to 15; R.sub.1 is C.sub.1 -C.sub.8 alkyl; R.sub.2 is C.sub.1 -C.sub.4 alkyl; or R.sub.1 and R.sub.2 ; to |
| 4700003 |
Ortho nitroanilines and a process for their production |
October 13, 1987 |
| New compounds having the formula I are described: ##STR1## wherein R and R.sup.1, independently are H, halogen, a straight- or branched-chain alkyl having 1 to 8 carbon atoms or a residue having the formula II: ##STR2## wherein R.sup.2 and R.sup.3 are the same or different an |
| 4661601 |
Resorcinol compounds |
April 28, 1987 |
| New compounds having the formula 1 ##STR1## wherein W is hydrogen, halogen, n-alkyl, --NHCOR.sup.1, --COR.sup.1, or phenoxyacetylamino optionally substituted by one or two C.sub.1-12 straight- or branched chain alkyl, X is a substituent in the coupling position and is selected fr |
| 4631252 |
Hydroquinone ether compounds |
December 23, 1986 |
| New hydroquinone ether compounds of formula I are described: ##STR1## wherein p is 1 or 2 and q is 0 or 1, provided that p+q is 1 or 2, R is a residue of formula II ##STR2## and R.sub.o, R.sub.oo, R.sub.1, R.sub.2, R.sub.3, Q, n and k are as defined in the specification.The n |
| 4616082 |
Hydroquinone ether compounds |
October 7, 1986 |
| New hydroquinone ether compounds of formula I are described: ##STR1## wherein p is 1 or 2 and Q is 0 or 1, provided that p+q is 1 or 2, R is a residue of formula II ##STR2## and R.sub.o, R.sub.oo, R.sub.1, R.sub.2, R.sub.3, Q, n and k are as defined in the specification,The n |
| 4608435 |
Benzo-1,4-quinones |
August 26, 1986 |
| New benzo-1,4-quinones and salts thereof with organic or inorganic acid and bases have the formula I ##STR1## wherein p is 1 or 2 and q is 0 or 1, provided that p+q is 1 or 2, R is a residue of formula II ##STR2## wherein Q is selected from the residues --CO.sub.2 R.sub.4, |
| 4554379 |
Aminoalkyl aromatic compounds and their production |
November 19, 1985 |
| New compounds having the formula:wherein x is 1 or 2 and the residues QNH.sub.2 are the same or different and each is a residue of formula: ##STR1## wherein n is an integer from 1 to 15, R.sub.1 is C.sub.1 -C.sub.8 alkyl, R.sub.2 is C.sub.1 -C.sub.4 alkyl or R.sub.1 and R.sub.2, toge |
| 4549015 |
Hydroquinone ether compounds |
October 22, 1985 |
| New hydroquinone ether compounds of formula I are described: ##STR1## wherein p is 1 or 2 and q is 0 or 1, provided that p+q is 1 or 2, R is a residue of formula II ##STR2## and R.sub.o, R.sub.oo, R.sub.1, R.sub.2, R.sub.3, Q, n and k are as defined in the specification.The n |
| 4484000 |
Hydroquinones |
November 20, 1984 |
| New hydroquinones having the formula: ##STR1## wherein p is 1 or 2 and q is 0 or 1, provided that p+q is 1 or 2; R is a residue of formula: ##STR2## wherein Q is selected from the residues --COZR.sub.4 wherein Z is 0 or NR.sub.5, --OX wherein X is R.sub.5 or --COR.sub.7, --NR |
| 4436936 |
Alkylation and aralkylation of aromatic amines |
March 13, 1984 |
| Compounds having the formula I ##STR1## as well as salts or metal salt complexes thereof, in which formula I n, R.sub.1, R.sub.2 and Z have the meanings given in claim 1, can be prepared under mild reaction conditions by reacting 1.0 mole of an aromatic amine having the formula I |
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