Examples of 'oxypropylene' in a sentence
Meaning of "oxypropylene"
Oxypropylene refers to a molecule containing both oxygen and propylene elements, commonly used in chemical compounds or industrial processes
How to use "oxypropylene" in a sentence
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oxypropylene
The oxypropylene units may be linear or branched.
The lubricant may be a linear oxypropylene homopolymer.
An oxypropylene group is regarded as a hydrophobic group.
Preferred polyalkylene glycols are the homopolymers consisting of oxypropylene groups.
The order of added oxypropylene and oxyethylene may be optional.
One of these polyoxyalkylene polymers is composed of only oxypropylene units.
The block of oxypropylene groups is internal to the polyoxyalkylene polyether polymer.
A randomized distribution of the oxyethylene and oxypropylene monomers is therefore obtained.
Particularly preferred are polyoxyalkylene monoethers in which all of the oxyalkylene units are oxypropylene.
Any other oxyalkylene groups present are preferably oxypropylene or oxytetramethylene groups.
Preferred monomers include one or more oxyalkylene groups selected from oxyethylene and oxypropylene.
Monoahl E molecular weight oxypropylene adduct of a polyoxyfluoropropane alcohol.
The other polyoxyalkylene polymers are composed of both oxyethylene and oxypropylene units.
PO stands for oxypropylene and EO for oxyethylene in this context.
The polyether surfactants of the present invention are substantially free of oxypropylene units.
See also
Preferably, they are oxyethylene or oxypropylene units or mixtures thereof.
Preferred are polyoxyethylene glycols or hydroxy functional copolyethers comprising oxyethylene and oxypropylene groups.
All of the oxypropylene monomers follow, forming a cap.
The polyethylene glycol may comprise a copolymer comprising oxyethylene and oxypropylene units.
The oxyalkylene units may be oxyethylene or oxypropylene units, or a combination thereof.
The number of oxyethylene groups is most preferably greater than the number of oxypropylene groups.
Preferably, the hydrophobic groups are oxypropylene and oxybutylene groups, preferably oxypropylene groups.
The method of any preceding claim wherein the polyether is comprised of oxypropylene repeating units.
The reactive silicon group-containing oxypropylene polymer can be modified by incorporating various fillers.
The present polyoxyalkylene glycol ether compatibilizers preferably comprise at least one oxypropylene radical.
At the same time the average number of oxypropylene units should not exceed about 16.
The present polyoxyalkylene glycol ether solubilizing agents preferably comprise at least one oxypropylene radical.
Preferably, the polyethers have at least some oxypropylene units produced from propylene oxide.
The polyoxyalkylene polyether polymer may comprise more than one internal block of oxypropylene groups.
Preferably, all the non-oxyethylene moieties are oxypropylene moieties derived from propylene oxide.
It is preferred that R is a block copolymer of oxyethylene and oxypropylene.
Thus, for example, oxypropylene blocks are normally relatively hydrophobic and oxyethylene blocks relatively hydrophilic.
The amines AC are most preferably substantially free of oxyethylene and of oxypropylene moieties.
JEFFAMINE ® polyetheramines typically have oxypropylene units or mixtures of oxyethylene and oxypropylene units.
Preferred oxyalkylene units are oxyethylene and / or oxypropylene units.
PO is an oxypropylene group, and EO is an oxyethylene group.
The oxyalkylene groups are preferably oxyethylene and / or oxypropylene groups.
More preferably, an average of from 4 to 16 oxypropylene units per equivalent of glycerin is present.
Preferably, said group corresponds to an oxyethylene and / or oxypropylene radical.
And y 2 are the number of oxypropylene units in the first and second black copolymers, respectively ;.
More preferably, the other oxyalkylene units are oxypropylene units.
SYNTHESIS EXAMPLE 1 800g of an oxypropylene polymer having an average molecular weight of ca.
Preferably still, the other oxyalkylene units are oxypropylene units.
To prepare propoxylated glycerol with three oxypropylene units the total propylene oxide charge is 3926.68 grams.
Advantageously, the nonionic surfactants do not comprise oxypropylene units.
First, an oxypropylene polyol ( or random EO-PO copolymer ) is made by DMC catalysis.
The average polyether chain has about 7 oxypropylene units.
The outer block C contains at least 95 % by weight oxypropylene groups and the remainder oxyethylene groups.
The process according to claim 3, wherein the hydrophobic units are oxypropylene groups.
In a more preferable range, the relative amount of oxypropylene groups ranges from 60 to 75 weight percent.
