Helmut Hurnik
14Patents
8h-index
25Co-inventors
72Inventor score
Filing activity: Sep 25, 1975 → Nov 22, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4714568A | New blowing agent combination based on azodicarbonamide, production thereof and use thereof for foaming polymers | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4518729A | Solutions of isocyanato-isocyanurates in plasticizers for polyvinyl chloride, a process for their production and their use as adhesion-improving additives in coating compositions based on plasticized polyvinyl chloride | Chemistry; Metallurgy | 13 | Expired |
| US4683267A | Thermoplastic moulding compounds based on polyoxymethylene and polymeric adipatecarbonate mixed esters | Chemistry; Metallurgy | 11 | Expired |
| US6359026B1 | Method for producing silicone foams | Chemistry; Metallurgy | 10 | Expired |
| US4518515A | Moulding compositions of vinyl chloride polymers, graft polymers and polymeric plasticizers having a high resistance to ageing | Chemistry; Metallurgy | 10 | Expired |
| US4623686A | Storage stable compositions based on polyvinyl chloride plastisols and stabilized isocyanates | Chemistry; Metallurgy | 9 | Expired |
| US4657976A | Moulding compositions of vinyl chloride polymers, graft polymers and polymeric plasticizers having a high resistance to ageing | Chemistry; Metallurgy | 9 | Expired |
| US4104195A | Blowing agents based on urea dicarboxylic acid anhydride | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4263165A | Blowing agent combination comprising azodicarbonamide, zinc oxide and a benzenethiol sulphonic acid derivative | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4435532A | Use of zinc salts of mercaptobenzimidazole and dithiophosphoric acid esters for the preparation of nitrile rubber/polyvinyl chloride mixtures | Chemistry; Metallurgy | 6 | Expired |
| US4518743A | Moulding compositions of vinyl chloride polymers, certain copolymers and polymeric plasticisers having a high resistance to ageing | Chemistry; Metallurgy | 4 | Expired |
| US4190710A | Blowing agents based on urea dicarboxylic acid anhydride | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5243013A | Polyester polyols and their use as anchoring agents for polymer systems and as polymeric plasticizers | Chemistry; Metallurgy | 3 | Expired |
| US5100998A | Process for improving the flowability of dimerized 2,4-tolylenediisocyanate | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.