Water Dnrm Patents (Class 524/596)
  • Patent number: 4366303
    Abstract: Particulate resoles are produced by mixing phenol, formaldehyde and amine in an aqueous medium containing a protective colloid. The resoles exhibit improved cure rate and sinter resistance when an alkaline compound is added to the reaction mixture after particulate formation.
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: December 28, 1982
    Assignee: Union Carbide Corporation
    Inventor: Peter W. Kopf
  • Patent number: 4362853
    Abstract: Carboxylate salts, prepared by a Mannich reaction and useful in the preparation of water-borne coatings, have the general formula ##STR1## where R.sup.1 represents an aliphatic, aromatic, or araliphatic divalent group which may contain a further --COO.sup.- M.sup.+ ; R.sup.2 represents --H, --CH(R.sup.3)N(R.sup.10)R.sup.1 COO.sup.- M.sup.+, or alkyl which may be substituted by --COO.sup.- M.sup.+, --CH(R.sup.3)OH, or --CH(R.sup.3)OR.sup.8, R.sup.1 and R.sup.2 containing together not more than one --COO.sup.- M.sup.+ ; R.sup.3 represents --H or alkyl; each R.sup.4 represents --H, halogen, alkyl, or alkenyl; R.sup.5 represents --H, halogen, alkyl, alkenyl, or a group --CH(R.sup.3)OH, --CH(R.sup.3)OR.sup.8, or --CHR.sup.3 --NR.sup.2 --R.sup.1 --COO.sup.- M.sup.+ ; either R.sup.6 represents --H and R.sup.7 represents the residue of a polyepoxide, preferably of average mol. wt. 1000-5000, or R.sup.6 represents a covalent bond linked to the group R.sup.7, and R.sup.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: December 7, 1982
    Assignee: Ciba-Geigy Corporation
    Inventor: Christopher G. Demmer
  • Patent number: 4346044
    Abstract: Air-drying alkyd resins which are in the form of neutralized semi-esters of hexahydrophthalic acid anhydride constitute an excellent basis for coatings which undergo virtually no yellowing and which, even when aged by heat, show a high constancy of color.
    Type: Grant
    Filed: July 11, 1980
    Date of Patent: August 24, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Dhein, Jochen Schoeps, Rolf Kuchenmeister
  • Patent number: 4336342
    Abstract: Binder Compositions comprising a solution of furan foundry binders in an alkylated aromatic hydrocarbon solvent result in a more cost efficient binder. The cost efficiency is achieved without significant loss of physical properties of the foundry cores and molds which are formed using the binder. In instances the binder compositions of this invention exhibit improved physical properties.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: June 22, 1982
    Assignee: Ashland Oil, Inc.
    Inventors: William R. Dunnavant, Young D. Kim