Examples of 'urea-formaldehyde' in a sentence
Meaning of "urea-formaldehyde"
urea-formaldehyde (noun) - A type of resin or adhesive made from the chemical reaction between urea and formaldehyde. It is commonly used in various industries such as construction and manufacturing for its adhesive properties
How to use "urea-formaldehyde" in a sentence
Basic
Advanced
urea-formaldehyde
Finalization of divestment of urea-formaldehyde resins business.
Urea-formaldehyde resins see anchoring agents.
Two steps in formation of urea-formaldehyde resin.
The urea-formaldehyde polymer is prepared as follows.
The microcapsules are made of urea-formaldehyde or polyvinyl alcohol.
Urea-formaldehyde resin is cheap and easy to use.
Process for the manufacture of urea-formaldehyde resins.
A suitable urea-formaldehyde polymer condensate can be used.
The solution is then added to a urea-formaldehyde resin.
Urea-formaldehyde resins are preferably used.
Useful aminoplasts include urea-formaldehyde and melamine formaldehyde.
The urea-formaldehyde resin does not withstand erosion by water.
Process for the manufacture of urea-formaldehyde resins containing melamine.
Urea-formaldehyde is more toxic and should be avoided in home use.
The aminoplastic resins most commonly employed are urea-formaldehyde resins.
See also
Production of melamine, urea-formaldehyde resins and methylene diphenyl diisocyanate.
In a further refined embodiment, the walls of the capsules comprise urea-formaldehyde.
The urea-formaldehyde resin does not resist the action of water.
A method of achieving rapid cure of urea-formaldehyde resin comprising the steps of,.
The urea-formaldehyde polymer is highly hydrophilic but generally water-insoluble.
As impregnating resins combinations of urea-formaldehyde resins and acrylic emulsions are suitable.
Etherified urea-formaldehyde prepolymers are commercially available in alcohol or in a mixture of alcohol and xylene.
The method of claim 1 wherein said composition is a urea-formaldehyde reaction product.
The urea-formaldehyde liquid resin of the invention may then be used as a fertilizer.
The first two mentioned are preferred, with urea-formaldehyde prepolymers being most preferred.
Examples of suitable amino resin crosslinkers are benzoguanamine, melamine and urea-formaldehyde resins.
One of the major applications of urea-formaldehyde resins is as a binder for lignocellulosic material.
Various techniques have been used to reduce formaldehyde emission from urea-formaldehyde resins.
Melamine-formaldehyde resin and urea-formaldehyde resin are examples of suitable amino resins.
The preferred size coat precursors are phenolic resins and urea-formaldehyde resins.
Method for producing a particulate urea-formaldehyde polymer as slow release nitrogen fertilizer.
A urea-formaldehyde resin which exhibits the following characteristics was used for each series,.
This cellulose pulp is impregnated with a urea-formaldehyde crosslinker and cured at elevated temperature.
The urea-formaldehyde polymer compounds are prepared by reacting formaldehyde with urea in aqueous solution.
It has also been proposed to add melamine during the manufacture of the urea-formaldehyde resins.
These are typified by the urea-formaldehyde and melamine formaldehyde-type wet strength resins.
The aminoplastic resin may be a melamine-formaldehyde resin but is preferably a urea-formaldehyde resin.
The use of urea-formaldehyde resins is limited to applications where exterior durability is not required.
Cosmetic composition comprising particles of melamine-formaldehyde or urea-formaldehyde resin and its uses.
Polymerization of the urea-formaldehyde precondensate during the encapsulation process yields water-insolubility.
The startup has created a patented non-toxic adhesive to serve as an alternative to urea-formaldehyde.
Cured urea-formaldehyde resins generally have poor humidity resistance and water resistance.
A microcapsule according to claim 1 in which the capsule is formed from an etherified urea-formaldehyde prepolymer.
The crosslinking agent is a urea-formaldehyde resin and the reaction is catalyzed by dodecylbenzene sulfonic acid.
These undesirable results have been confirmed by numerous experiences carried out utilizing urea-formaldehyde foams.
Both urea and combined urea-formaldehyde products can be used according to the present disclosure.
The compound containing amino groups can be urea or an oligomer originating from urea-formaldehyde condensation.
Hardening composition for urea-formaldehyde glues, process for its preparation and kit comprising it.
Alternatively the acrylic polymer is stored and afterwards combined with the urea-formaldehyde resin.
Formaldehyde and urea-formaldehyde products were among the first agents used to cross-link cellulosic fibers.
