Temperature-stable paraffin inhibitor compositions
US-2017292657-A1 · Oct 12, 2017 · US
US10875953B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10875953-B2 |
| Application number | US-201815879270-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 24, 2018 |
| Priority date | Jan 25, 2017 |
| Publication date | Dec 29, 2020 |
| Grant date | Dec 29, 2020 |
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
What the patent document calls the invention.
A short plain-language summary of the technical disclosure.
Who owns or filed the patent and who is credited as inventor.
Filing, priority, publication, and grant dates set the timeline.
The legal scope of protection — read this for what is actually claimed.
Technology tags used to group this patent with similar filings.
Prior art links and similar publications in this corpus.
Official abstract text for this publication.
This invention relates to an alkoxylated calixarene resin comprising one or more modified calixarene alkoxylate compounds. The invention also relates to a process for preparing a solubilized alkoxylated calixarene resin comprising reacting a phenolic resin mixture, comprising linear phenolic resins and calixarene compounds having phenolic hydroxyl groups, with one or more epoxide-containing compounds to alkoxylate one or more of the phenolic hydroxyl groups of the calixarene compounds to form a solubilized phenolic resin mixture, and reacting the solubilized phenolic resin mixture with one or more alkylene oxides.
Opening claim text (preview).
We claim: 1. An alkoxylated calixarene resin comprising one or more modified calixarene alkoxylate compounds, each modified calixarene alkoxylate compound comprising 4-20 units of formula (IV), (V), and/or formula (VI): wherein: each X is independently the same or different moiety, each moiety having a structure of each Z is independently the same or different moiety, each moiety having a structure of each R′ and R″ are independently H, or C 1 to C 4 alkyl; each R 1 is independently a H, C 1 to C 30 alkyl, phenyl, or arylalkyl; each R 2 is independently a H, C 1 to C 20 branched or unbranched alkyl which may optionally be substituted with one or more glycidyl ether units of the formula C 2 to C 10 alkenyl, or C 5 to C 10 aryl; each L is independently selected from the group consisting of —CH 2 —, —C(O)—, —CH(R 3 )—, —(CH 2 ) n —O—(CH 2 ) n —, —C(R 3 ) 2 —, and —S—; each R 3 is independently a C 1 -C 6 alkyl; each m is independently an integer from 0 to 10; provided that when m is 0, each R 2 is independently a C 5 to C 10 aryl; each n is independently an integer from 1 to 2; each p is independently an integer from 1 to 150; each q is independently an integer from 1 to 100; and each A 1 represents a direct covalent bond to an adjacent unit of formula (IV), (V), or formula (VI) such that there is one L group between adjacent units, whereby the total units in the modified calixarene alkoxylate compound form a ring; and wherein the units of formula (IV) make up from about 35% to 100% of the overall units present in the modified calixarene alkoxylate compounds. 2. The alkoxylated calixarene resin of claim 1 , wherein each m is 1. 3. The alkoxylated calixarene resin of claim 2 , wherein each R 2 is independently selected from the group consisting of hydrogen, methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, tert-butyl, allyl, ethylhexyl, octyl, nonyl, decyl, phenyl, nonylphenyl, and hexadecyl; or is independently a C 1 to C 8 branched or unbranched alkyl, substituted with one or more glycidyl ether units of the formula 4. The alkoxylated calixarene resin of claim 3 , wherein each R 2 is n-butyl or 5. The alkoxylated calixarene resin of claim 1 , wherein each Z is or a combination thereof. 6. The alkoxylated calixarene resin of claim 1 , wherein each p is independently 1-20. 7. The alkoxylated calixarene resin of claim 1 , wherein each R 1 is independently a C 4 to C 12 alkyl or C 24 to C 28 alkyl. 8. The alkoxylated calixarene resin of claim 1 , wherein the total number of units in the calixarene compounds is from 4 to 8. 9. The alkoxylated calixarene resin of claim 1 , wherein one or more units in the modified calixarene alkoxylate compounds have the structure of wherein: each R 1 is independently a C 4 to C 12 alkyl; each Z is or a combination thereof; each p is independently 1-20; each L is independently —CH 2 —or —CH 2 —O—CH 2 —; and the total units in the calixarene compounds is from 4 to 8. 10. The alkoxylated calixarene resin of claim 1 , wherein the alkoxylated calixarene resin has a solubility in a hydrocarbon solvent increased by at least 20% compared to a resin comprising calixarene compounds containing units of formula (V) and/or (VI), but no units of formula (IV). 11. A resin solution comprising the alkoxylated calixarene resin of claim 1 , wherein the alkoxylated calixarene resin is dissolved in a hydrocarbon solvent having a concentration of about 50 wt % to about 75 wt %. 12. The resin solution of claim 11 , wherein the hydrocarbon solvent is an aromatic hydrocarbon solvent selected from the group consisting of toluene, xylene, tetralin, a C 9 -C 10 aromatic hydrocarbon solvent, and a C 10 -C 12 aromatic hydrocarbon solvent. 13. A method of resolving a water-in-oil or oil-in-water emulsion, comprising: adding to a water-in-oil or oil-in-water emulsion an effective demulsifying amount of one or more alkoxylated calixarene resins of claim 1 .
with separation aids · CPC title
by etherifying · CPC title
Oil well production fluids · CPC title
with monohydric phenols having only one hydrocarbon substituent ortho on para to the OH group, e.g. p-tert.-butyl phenol · CPC title
with chemical means · CPC title
Related publications grouped by family.
Answers are generated from the same data shown on this page.