Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1977-09-30
1980-09-09
Person, Sandra M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528 93, 528 94, 528103, 528104, 528 89, C08K 513, C08K 553
Patent
active
042218900
ABSTRACT:
An epoxy resin composition which is useful for repairing concrete surfaces having an epoxy resin combined with a curing agent comprised of polyamines and phenolic accelerators. In one embodiment, the epoxy resin is conditioned with a resin modifier comprised of glycidylethers and phenolic and phosphite accelerators prior to being combined with the curing agent. The method for making the curing agent includes a first stage in which an aliphatic polyamine is combined with Bisphenol A and heated to 125.degree. C. for one hour and allowed to cool to room temperature and a second stage in which a second polyamine and an accelerator is added to the product of the first stage. In one embodiment of the method for preparing the curing agent, phenol is added to the mixture of the first stage when the mixture has cooled to 65.degree. C. In another embodiment, butyl glycidylether is added as the first step in the second stage to the product of the first stage prior to the addition of the second polyamine and the accelerator.
REFERENCES:
patent: 3085075 (1963-04-01), Lockshin et al.
patent: 3346533 (1967-10-01), Strother
patent: 3428601 (1969-02-01), Dijkstra et al.
patent: 3575870 (1971-04-01), Shimoyama
patent: 3703496 (1972-11-01), Hodan et al.
patent: 3738862 (1973-06-01), Klarquist et al.
patent: 3763098 (1973-10-01), Green et al.
patent: 3853812 (1974-12-01), Helm
Person Sandra M.
Thermal-Chem, Inc.
Vigil Thomas R.
LandOfFree
Epoxy resin composition and method for making same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Epoxy resin composition and method for making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Epoxy resin composition and method for making same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2224988