Check patentability & draft patents in minutes with Patsnap Eureka AI!

Filling composition for optical fiber cables

A technology of filling composition and mineral oil, which is applied in the direction of insulating cables, cables, optics, etc., and can solve the problems of reduced mechanical properties and low compatibility of buffer tubes

Active Publication Date: 2020-02-07
DOW GLOBAL TECH LLC
View PDF22 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that mineral oil based fill compositions such as those used with PBT buffer tubes have low compatibility with polyolefin buffer tube materials
Migration of mineral oil into the polyolefin material leads to a decrease in the mechanical properties of the buffer tube

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
  • Filling composition for optical fiber cables
  • Filling composition for optical fiber cables
  • Filling composition for optical fiber cables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0177] Material

[0178] Mineral oil #15 is a mineral oil with a kinematic viscosity of 15 cSt at 40°C (available from Sinoreagent Company).

[0179] #80 Mineral Oil is a mineral oil with a kinematic viscosity of 80 cSt at 40°C (available from Suzhou Saipan Han Petroleum Company).

[0180] #100 Mineral Oil is a mineral oil with a kinematic viscosity of 100 cSt at 40°C (available from Sinoreagent Company).

[0181] #200 Mineral Oil is a mineral oil with a kinematic viscosity of 200 cSt at 40°C (available from Shanghai Chaoya Petroleum Company).

[0182] G1701 is a transparent linear diblock copolymer based on styrene and ethylene / propylene (S-E / P) with a combined styrene content of 35% by mass, available from Kraton Company.

[0183] PIB is Durasyn 166 poly(isobutylene) available from INEOS.

[0184] P / E1 is a propylene / ethylene copolymer with a density of 0.885g / cc, an ethylene content of 6wt%, M w 26,914, M n to 11,815.

[0185] P / E2 is a propylene / ethylene copolymer wi...

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
Kinematic viscosityaaaaaaaaaa
Kinematic viscosityaaaaaaaaaa
Kinematic viscosityaaaaaaaaaa
Login to View More

Abstract

A filling composition comprises (A) a mineral oil having a kinematic viscosity from 80 cSt to 100 cSt at 40 degrees centigrade; (B) a styrene-ethylene / propylene diblock copolymer; and (C1) a propylene / ethylene copolymer having a weight average molecular weight (Mw) from 5000 to 200000 or (C2) an ethylene / propylene copolymer having a weight average molecular weight (Mw) from 5000 to 200000. The filling composition is used as a filling composition in a buffer tube.

Description

technical field [0001] The present disclosure relates to fiber optic cables. In one aspect, the present disclosure relates to filling compositions for fiber optic cables, and in another aspect, the present disclosure relates to fiber optic cables including the filling compositions. Background technique [0002] A fiber optic cable includes one or more optical fibers or other optical waveguides that conduct optical signals (eg, to carry voice, data, video, or other information). Typically, the optical fibers are arranged in a tubular assembly called a buffer tube. To protect the optical fiber from damage (eg, exposure to moisture / humidity, physical stress), the buffer tube is filled with a filling composition surrounding the optical fiber. The filling composition is used as a moisture barrier to prevent water damage to optical fibers and as a cushion to absorb mechanical shock. The filling composition may be a fluid, gel, grease or thixotropic material. [0003] Buffer tu...

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
IPC IPC(8): G02B6/44H01B7/285C08L91/00
CPCC08L91/00H01B7/285G02B6/4483C08L2207/322C08L53/025G02B6/44384C08L23/16C08L25/08C08L23/14C08L53/00G02B6/441G02B6/4429
Inventor 孙刚伟许仙敏M·埃斯吉尔高鹏吴幼军余灵峰
Owner DOW GLOBAL TECH LLC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com