Examples of 'oxyethylene' in a sentence
Meaning of "oxyethylene"
Oxyethylene is a chemical compound with the formula C2H4O, commonly used in the production of polyethylene glycols and surfactants
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- ethylene oxide, oxirane
How to use "oxyethylene" in a sentence
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oxyethylene
Said alkylene groups are preferably oxyethylene motifs.
The weight percent oxyethylene was calculated for the samples.
The oxyalkylene group is preferably an oxyethylene group.
A randomized distribution of the oxyethylene and oxypropylene monomers is therefore obtained.
The polyoxypropylene glycols may contain oxyethylene units.
The polyoxypropylene glycol may contain oxyethylene moieties distributed randomly or in block fashion.
A preferred other oxyalkylene unit is oxyethylene.
Preferred are polyoxyethylene glycols or hydroxy functional copolyethers comprising oxyethylene and oxypropylene groups.
The polyol contains no internal oxyethylene moieties.
The number of oxyethylene groups is most preferably greater than the number of oxypropylene groups.
These units are preferably oxyethylene units.
Preferably, they are oxyethylene or oxypropylene units or mixtures thereof.
Where n represents the average number of oxyethylene groups.
EO is an oxyethylene group.
A hydrophile is attached to the mixed chain and is based on oxyethylene groups.
See also
As a hydrophilic group, an oxyethylene ether group is included.
This is accomplished by terminating the polyether polymer with a terminal block oxyethylene groups.
Mixtures of these polyols having a high oxyethylene content may be used as well.
At least one of said monomers is a polyethylenically unsaturated crosslinking monomer free of oxyethylene groups.
The hydrophilicity is typically provided by an oxyethylene group or chain or an ester group.
However, the oxyethylene distribution is a very important criteria.
The order of added oxypropylene and oxyethylene may be optional.
An example is lauryl oxyethylene phosphate with 2 to 4 moles of ethylene oxide moiety.
The oxyalkylene and carbonyloxyalkylene groups are particularly oxyethylene and carbonyloxyethylene groups.
If the oxyethylene moieties are contained in a block, the block is preferably a terminal block.
Those surfactants having a hydrophilic group based on oxyethylene groups are especially preferred.
In a preferred embodiment, the oxyalkylene units are predominantly oxyethylene.
Numerous patents disclose compositions comprising glyphosate and an oxyethylene or polyoxyethylene amine or ammonium surfactant.
The HLB-value is directly proportional to the content of oxyethylene.
EO represents an oxyethylene group.
This invention relates to a method for making polyether alcohols that have oxyethylene units.
Preferred oxyalkylene units are oxyethylene and / or oxypropylene units.
More specifically, polyethoxylated triglycerides comprise unsubstituted oxyethylene units.
The oxyalkylene groups are preferably oxyethylene and / or oxypropylene groups.
Process-according to claim 9 wherein the polyoxyalkylene diol comprises oxyethylene groups.
The oxyalkylene units may be oxyethylene or oxypropylene units, or a combination thereof.
The polyethylene glycol may comprise a copolymer comprising oxyethylene and oxypropylene units.
When the polyether is all oxyethylene groups, maximum hydrophilicity is achieved.
Preferred monomers include one or more oxyalkylene groups selected from oxyethylene and oxypropylene.
The oxyalkylene units are for example, oxyethylene or oxypropylene units, or a combination thereof.
Moreover, the surfactant is substantially free of oxyethylene units.
Surprisingly, it is not the total oxyethylene content which is most important.
The hydrophilic part is generally composed of hydroxyl, carboxyl, or oxyethylene groups.
However, randomly distributed oxyethylene moieties are preferred when such moieties are present.
The other polyoxyalkylene polymers are composed of both oxyethylene and oxypropylene units.
The oxypropylene / oxyethylene ratio may vary from zero to about unity.
Its incorporation into the copolymer molecule introduces oxyethylene groups into the polymer molecule.
In addition to the oxyethylene units, the oxyalkylene chains usually comprise oxypropylene units.
The amines AC are most preferably substantially free of oxyethylene and of oxypropylene moieties.
A higher amount of internal oxyethylene will be required to produce a haze-free polyol in this case.
