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Hitachi High Technologies America, Inc.

Hitachi

Kyoritsu Adhesives

GR 1221 / GR 468
Kyoritsu Adhesives

Kyoritsu Chemical & Co., Ltd. manufactures adhesives used in optical communication devices.

Kyoritsu Chemical & Co., Ltd. manufactures adhesives that are used in a variety of optical devices for highly accurate component attachment. The adhesives have desirable attributes, such as high glass transition temperature and low moisture absorption, making it ideal for fixing components that require high accuracy. The adhesives can be used, for example, to fix fibers in V-groove arrays, or Fiber Bragg Gratings to substrate/fibers.

Hitachi High Technologies America is Kyoritsu Chemical & Co., Ltd.'s sales and marketing representative for North America.

Advantages:

  • High hardness
  • High Tg (glass transition temperature)
  • Low water absorption/low moisture absorption
  • Low curing shrinkage
  • Low outgas
  • Humidity/solvent durability
  • You can choose either UV or Heat curing 

Applications:

  • Optical Communication Devices
  • Optical Pick Up
  • Semiconductor Package & Devices
  • Liquid Crystal Display
  • Flat Panel Display
  • Projector 

 

 

Coupler, FBG (Fiber Bragg Grating)
 W/R No. 8700-7 HW/R No. 8774W/R No. x-8700-7K5
Main Materials Epoxy Epoxy Epoxy
Appearance White  Light Grey White 
Viscosity 55,000 mPa-s 40,000 mPa-s 75,000 mPa-s
UV Cure 6,000 mJ/cm sq. 6,000 mj/cm sq. 3000 ~ 6000 mJ/cm sq.
Heat Anneal 120 C x 10 min
100 C x 30 min

120 C x 10 min
100 C x 30 min
120 C x 10 min
100 C x 30 min

Heat Cure  120 C x 1 hr  120 C x 1 hr  
Hardness   85
Type D
 88
Type D
 87
Type D
Curing Shrinkage   3.00%  0.76%  2.00%
Water Absorption
Rate

 1.10%    
Moisture
Absorption Rate

 1.48%    1.40%
Water Vapor 
Permeability 

     11.7 g / m2 
(24 hr) & 85 C/85% 
     5.8 g / m2 
(24 hr) & 65 C/95% 
 Tg   132.6 C   158.3 C   132.0 C 
 CTE: a1   5.3 x 10-5   5.3 x 10-5   5.3 x 10-5
CTE: a2 5.3 x 10-5  5.3 x 10-5   5.3 x 10-5 
 Shelf Life  3 Months   2 Months   2 Months 
 (Dark & Cold Place)   Refrigerator   25 +/- 5 C 
(Dark Place) 

 Application   FBG Coupler   FBG Coupler   FBG Coupler 

 

Fiber Array
 W/R No. XOC-03H2 W/R No. XOC-03HS1 W/R No. XVL-14 
Viscosity  1800 mPa-s  3800 mPa-s  12000 mPa-s 
UV Cure 6,000 mJ/cm sq.  3,000 mj/cm sq.  3000 ~ 4500 mJ/cm sq.
Heat Cure 120 C x 1 hr  120 C x 1 hr   
Hardness  86 
Type D 
86 
Type D 
30 +/- 5 
Type A 
Curing Shrinkage  1.90%  1.80%  4.80% 
Moisture 
Absorption Rate 
    41 g / cm2 (24 hr) 
(PCT 20 hrs)  1.20%     
Tg 127 C 146 C  146 C 
CTE: a1  6.7 x 10-5  6.9 x 10-5   
CTE: a2 2.1 x 10-4  1.8 x 10-4   
Adhesive 
Strength 
     
Shear 17.9 Mpa     
T-Peel Strength  3.63 N/mm 4.80 N/mm  4.80 N/mm 
Application FIBER ARRAY 
Fixing 
FIBER ARRAY 
Fixing 
FIBER ARRAY 
Potting 

Telcordia Testing

GR 1221
Test TypeTest ConditionTest Pass or Fail
Dry Heat  85 C @ 2000 hrs  Pass 
Damp Heat Test  85 C /85% RH @ 2000 hrs  Pass 
Temperature Cycle  -40 C ~ 80 C @ 2000 hrs 
1 cyc. 8 hrs 1000 hrs 
Pass 

 

GR 468
Test TypeTest ConditionTest Pass or Fail
Accelerated Aging  85 C @ 2000 hrs  Pass 
Damp Heat Test  85 C /85% RH @ 2000 hrs  Pass 
Temperature Cycle  -40 C ~ 80 C @ 2000 hrs  Pass 
Popcorn Test  After; -40 C ~ 85 C @ 200 hrs 
After; 85 C/85% @ 72 hrs, Put into 
Solder (260 C) @ 10sec 
Pass