摘要:
The invention relates to carbonyl derivatives which are histamine H-2 antagonists and which inhibit gastric acid secretion. According to the invention where is provided a guanidine derivative of the formula I:- in which R' and R 2 , same or different, are hydrogen or 1-10C alkyl, 3-8C cycloalkyl or 4-14C cycloalkylalkyl, each alkyl, cycloalkyl or cycloalkylalkyl optionally carrying one or more F, Cl or Br atoms, provided that one of R 1 and R 2 is halogen substituted, or R 2 is hydrogen and R 1 is R 5 -E-W in which W is 2-6C alkylene optionally substituted by 1 or 2 1-4C alkyls, E is O, S, SO. SO 2 or NR 6 in which R 6 is H or 1-6C alkyl, R 5 is H or 1-6C alkyl optionally substituted by 1 or 2 1-4C alkyls, or R 5 and R 6 are joined to form a pyrrolidine, piperidine, morpholine, piperazine or N-methylpiperazine ring, or R 2 is H and R 1 is H, 1-10C alkyl, 3-8C cycloalkyl, 4-14C cycloalkylalkyl, 3-6C alkenyl, 3-6C alkynyl, 1-6C alkanoyl, 6-10C aryl, 7-11C aralkyl or 7-11C aroyl; ring X is a heterocyclic ring as defined in the specification; A is phenylene or 5-7C cycloalkylene, or a 1-8C alkylene into which is optionally inserted one or two groups: D is O or S; R 4 is H or 1-6C alkyl; R 3 is H or a variety of radicals described in the specification: and the pharmaceutically-acceptable acid-addition salts thereof. Manufacturing processes and pharmaceutical compositions are also described.
摘要:
Fully cured reinforced molded resins such as polyester, polyurea-urethane, polyurea, polyurethane, polyisocyanurate, polyepoxy and polycarbonate resins can be in-mold coated to cover surface defects such as sink marks and microcracks with an improved coating composition comprising 5-94% by weight of an ethylenically unsaturated base resin free of groups reactive with isocyanate radicals; 5-94% by weight of an ethylenically unsaturated monomer free of groups reactive with isocyanate radicals; and 1-20% by weight of isocyanate-containing compounds or compounds which decompose to form free isocyanate-containing compounds. Such coatings unexpectedly have improved adherence to molded articles over those obtained from similar compositions which contain no free isocyanate. The compositions may contain minor amounts of emulsifiers, fillers, catalysts, cross-linking agents, dryers and pigments. In particular, the coatings obtained when the compositions contain electroconductive fillers can be painted by standard electrostatic paint techniques.
摘要:
The invention relates to a guanidine of the formula:- in which R 1 and R 2 are H, Ci-io alkyl, C 3-8 cycloalkyl or cycloalkylalkyl in which the alkyl part is C 1-6 and the cycloalkyl part is C 3-8 , each of the alkyl, cycloalkyl and cycloalkylal- kyls being optionally substituted by one or more halogens selected from F, Cl and Br, provided that at least one of R' and R' is a halogen substituted alkyl, cycloalkyl or cycloalkyl-alkyl and provided that there is no halogen substituent on the carbon directly attached to the nitrogen;
ring X is phenyl carrying 1 or 2 optional substitutents or a 5- or 6-membered heterocyclic aromatic ring containing 1, 2 or 3 hetero atoms selected from 0, N and S, which heterocyclic ring may, carry a single optional substituent selected from F, Cl, Br, I, C 1-6 alkyl, C 1-6 alkoxy, C 1-6 alkylthio, trifluoromethyl, hydroxy and amino; Y is 0, S, a direct bond, methylene, vinylene, SO or NR 4 in which R 4 is H or C 1-6 alkyl; m is 0 to 4 and n is 1 to 5, provided that when Y is 0, SO or NR 4 , n is 2 to 5; R 3 has various significances; and the pharmaceutically-acceptable acid-addition salts thereof. Manufacturing processes and pharmaceutical compositions are also described.
摘要:
An electrostatic safety element within an electric initiator having the form of a disc (40) surrounding lead wires for preventing accidental ignition due to static electricity. It comprises a non-conductive circular substrate (42) having a slotted opening (44) for the lead wires, and a conductive coating layer (46) on at least one face of the substrate to conduct electricity from the leads to the metallic initiator casing in the event of electrostatic discharge. This conductive layer (46) should be in electrical contact with the casing but not with the lead wires; to that end the substrate (42) is left uncoated in the immediate vicinity of the opening (44).
摘要:
Ethylenically unsaturated monomer solutions of ethylenically unsaturated polyester, polyester urethane and polyisocyanurate resins are quickly converted to moldable gels by the homogeneous formation therein of polyurea resins by the interaction of polyamines and polyisocyanates. Tack-free handleable moldable gels are formed within minutes which can be stored under normal conditions for long periods of time until molded. Fully cured intractable articles are formed by the polymerization of the ethylenically unsaturated ingredients.
摘要:
The invention relates to oxadiazole derivatives which are histamine H-2 antagonists and which inhibit the secretion of gastric acid, to methods for their manufacture and to pharmaceutical compositions containing them. The oxadiazole derivatives are of the formula: in which Y is O, S, CH 2 or a direct bond; m is 0 to 4 and n is 1 to 4, provided that when Y is S or O m is 1 to 4 and when Y is O n is 2 to 4; A is a 3,4-dioxocyclobuten-1,2-diyl radical or C=Z in which Z is O, S, NCN, NNO 2 , CHNO 2 , NCONH 2 , C(CN) 2 , NCOR 1 , NCO 2 R 1 , NSO 2 R 1 or NR 2 in which R 1 is alkyl or aryl and R 2 is H or alkyl; B is alkoxy or alkylthio or NHR 3 in which R 3 is H or alkyl: and the salts thereof.
摘要:
A resin composition contains a tackifying resin and at least one phosphorous containing surfactant having branched alkyl and/or alkenyl group and a polyoxyalkylene group. The resin composition is particularly suitable for use in pressure sensitive adhesives.