Photocurable epoxy compositions containing group Va onium salts
Patent 4069055 Issued on January 17, 1978. Estimated Expiration Date: January 17, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
430/280.1, Radiation sensitive composition comprising oxirane ring containing component106/31.46, The nitrogen is a ring member of a heterocyclic ring106/31.76, The nitrogen is a ring member of a heterocyclic ring430/914, Cationic or anionic522/143, Hetero oxygen522/170, 1,2 epoxy522/31, Specified rate-affecting material contains onium group522/38, Containing phosphorous522/39, Containing nitrogen523/400, Process of forming a composition containing a nonreactive material (NRM) and a polymer containing more than one 1,2-epoxy group, or a preformed polymer derived from or admixed with a reactant containing more than one 1,2-epoxy group, or with a polymer derived from an epihalohydrin and a polyhydric phenol or polyol; or composition or product thereof528/103, Two or more 1,2-epoxy reactants528/408, Polymerizing in the presence of a specified material other than a reactant528/409, Material contains a metal atom528/92, Material contains a polyvalent metal atom528/93, Material contains a nitrogen compound534/12, Containing -C(=X)-, wherein X is chalcogen (e.g., carbonyl containing, etc.)534/13, The -C(=X)- is part of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens534/15, RARE EARTH METAL CONTAINING (At. No. 21, 39, 57-60 or 62-71)534/16, Containing -C(=X)X-, wherein the X's are the same or diverse chalcogens544/347, Phenazines (including hydrogenated)546/184, Piperidines548/102, Arsenic containing548/107, The metal is in an anion and the five-membered hetero ring is in a cation548/110, Boron or silicon containing556/1, HEAVY METAL CONTAINING (e.g., Ga, In or T1, etc.)556/107, Nitrogen containing556/13, Phosphorus containing556/174, Phosphorus containing556/176, Nitrogen bonded directly to the aluminum556/20, Plural carbons bonded directly to the phosphorus556/27, Aluminum containing556/30, Arsenic, antimony, or bismuth containing (As, Sb, or Bi)556/42, Vanadium, niobium, or tantalum containing (V, Nb, or Ta)556/51, Titanium, zirconium, or hafnium containing (Ti, Zr, or Hf)556/57, Chromium, molybdenum, or tungsten containing (Cr, Mo, or556/63, Nitrogen or halogen containing556/64, Arsenic, antimony, or bismuth containing (As, Sb, or Bi)556/7, Boron containing556/81Germanium, tin, or lead containing (Ge, Sn, or Pb)
Cationic polymerization of epoxy resin such as epoxy monomers or prepolymers, can be achieved by use of certain radiation sensitive aromatic onium salts of Group Va elements. Curable compositions are provided which can be used as sealants, coating compounds, encapsulants, etc.
Other References
Irving et al., Journal Chemical Society, 1960 pp. 2078-2081
Banks, Organic Review, vol. 66, No. 3, (1966), pp. 243-266
Schonberg, Preparative Organic Photochemistry, (1968), pp. 455-458
Knapczyk et al., Journal of Organic Chemistry, vol. 35, No. 8, pp. 2539-2543 (1970)
January 17, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
