Unlock instant, AI-driven research and patent intelligence for your innovation.

Thermoplastic vulcanizates modified polypropylene for subsea insulation

A technology of thermoplastic vulcanization and polypropylene, which is applied in thermal insulation, pipeline protection, heat exchange equipment, etc., and can solve problems such as lack of layer structure and poor mechanical properties of materials

Pending Publication Date: 2021-02-19
DOW GLOBAL TECH LLC
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyolefins lack the layer structure of 5LPP and thus the mechanical properties of the material are poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thermoplastic vulcanizates modified polypropylene for subsea insulation
  • Thermoplastic vulcanizates modified polypropylene for subsea insulation
  • Thermoplastic vulcanizates modified polypropylene for subsea insulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The disclosed invention involves applying an insulating coating comprising polypropylene and thermoplastic vulcanizate to the exposed end of a pipe otherwise coated with another insulating material.

[0014] All percentages stated herein are by weight (wt %) unless otherwise indicated.

[0015] Unless otherwise stated, temperatures are in degrees Celsius (°C), and "ambient temperature" means between 20°C and 25°C.

[0016] "Polymer" generally refers to a polymeric compound or "resin" prepared by polymerizing monomers of the same or different types. As used herein, the generic term "polymer" includes polymeric compounds made from one or more types of monomers.

[0017] Polypropylene

[0018] Polypropylene (PP) is a thermoplastic polymer with the following chemical formula:

[0019]

[0020] The properties of PP depend on molecular weight and molecular weight distribution, crystallinity, type and ratio of comonomers (if used), and isotacticity. PP is generally toug...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
Login to View More

Abstract

A polypropylene / thermoplastic vulcanizate insulative coating is disclosed. The coating is particularly suited for subsea applications, in particular providing insulation to joints in oil well pipes and other machinery. The coating exhibits mechanical properties superior to joint insulation coatings known in the art, especially in combination with other insulation coatings.

Description

[0001] cross reference [0002] This international patent application claims priority to U.S. Provisional Patent Application No. 62 / 692,164, filed June 29, 2018. technical field [0003] This invention relates to insulation for pipes and other materials for conveying fluids. More specifically, the present invention relates to an insulating material that can be applied to the exposed end of an otherwise insulated pipe and will complement the mechanical properties of the pre-existing insulation. Background technique [0004] Deep-sea oil production and transportation machinery, such as subsea pipelines and oil well "Christmastrees," require insulating coatings to ensure the proper flow of the hot crude oil contained within the machinery. One of the most common forms of deep sea mechanical insulation is 5-layer polypropylene (5LPP) insulation. As the name suggests, 5LPP insulation is a multi-layer polypropylene insulation consisting of layers that provide the bonding functio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C09D123/10C09D123/16
CPCC08L23/12C09D123/10C09D123/16C08L23/16C09D7/63F16L59/028C09D123/12
Inventor B·库马R·梅塔
Owner DOW GLOBAL TECH LLC