For this first you need to create one product attribute like Salebale with Yes/No value

then need to add condition on minicart.phtml

app/design/frontend/Yourpackage/Yourtheme/Magento_Checkout/templates/cart/minicart.phtml

Here First you need to get current prodcut as you need to hide minicart from product page so to get current product use below code

<?php 
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$product = $objectManager->get('Magento\Framework\Registry')->registry('current_product');//get current product
echo $product->getId();
echo $product->getName();
?>

Or Add bellow code in your block file. for example

app/code/Packagename/Modulename/Block/CustomBlock.php

<?php
namespace Packagename\Modulename\Block;
class CustomBlock extends \Magento\Framework\View\Element\Template
{
    protected $_registry;

    public function __construct(
        \Magento\Backend\Block\Template\Context $context,       
        \Magento\Framework\Registry $registry,
        array $data = []
    )
    {       
        $this->_registry = $registry;
        parent::__construct($context, $data);
    }

    public function _prepareLayout()
    {
        return parent::_prepareLayout();
    }

    public function getCurrentProduct()
    {       
        return $this->_registry->registry('current_product');
    }   
}
?>

Printing current product data in your template (custom.phtml) file

if ($currentProduct = $block->getCurrentProduct()) {
    echo $currentProduct->getName() . '<br />';    
}

So when you get the current product object then get saleable attribute value using current product like below

<?php $saleable = $currentProduct->getSalebale(); ?>

then in above mentioned minicart.phtml add condition to show minicart only on Saleable product page. put all minicart code in condition like

<?php if($saleable): ?>
/******* Minicart content **********/
<?php endif; ?>

For this first you need to create one product attribute like Salebale with Yes/No value

then need to add condition on minicart.phtml

app/design/frontend/Yourpackage/Yourtheme/Magento_Checkout/templates/cart/minicart.phtml

Here First you need to get current product as you need to hide minicart from product page so to get current product use below code

<?php 
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$product = $objectManager->get('Magento\Framework\Registry')->registry('current_product');//get current product
echo $product->getId();
echo $product->getName();
?>

Or Add bellow code in your block file. for example

app/code/Packagename/Modulename/Block/CustomBlock.php

<?php
namespace Packagename\Modulename\Block;
class CustomBlock extends \Magento\Framework\View\Element\Template
{
    protected $_registry;

    public function __construct(
        \Magento\Backend\Block\Template\Context $context,       
        \Magento\Framework\Registry $registry,
        array $data = []
    )
    {       
        $this->_registry = $registry;
        parent::__construct($context, $data);
    }

    public function _prepareLayout()
    {
        return parent::_prepareLayout();
    }

    public function getCurrentProduct()
    {       
        return $this->_registry->registry('current_product');
    }   
}
?>

Printing current product data in your template (custom.phtml) file

if ($currentProduct = $block->getCurrentProduct()) {
    echo $currentProduct->getName() . '<br />';    
}

So when you get the current product object then get saleable attribute value using current product like below

<?php $saleable = $currentProduct->getSalebale(); ?>

then in above mentioned minicart.phtml add condition to show minicart only on Saleable product page. put all minicart code in condition like

<?php if($saleable): ?>
/******* Minicart content **********/
<?php endif; ?>

For this first you need to create one product attribute like Salebale with Yes/No value

then need to add condition on minicart.phtml app/design/frontend/Yourpackage/Yourtheme/Magento_Checkout/templates/cart/minicart.phtml

Here First you need to get current prodcut as you need to hide minicart from product page so to get current product use below code

<?php 
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$product = $objectManager->get('Magento\Framework\Registry')->registry('current_product');//get current product
echo $product->getId();
echo $product->getName();
?>

Or Add bellow code in your block file. for example app/code/Packagename/Modulename/Block/CustomBlock.php <?php namespace Packagename\Modulename\Block; class CustomBlock extends \Magento\Framework\View\Element\Template { protected $_registry;

    public function __construct(
        \Magento\Backend\Block\Template\Context $context,       
        \Magento\Framework\Registry $registry,
        array $data = []
    )
    {       
        $this->_registry = $registry;
        parent::__construct($context, $data);
    }

    public function _prepareLayout()
    {
        return parent::_prepareLayout();
    }

    public function getCurrentProduct()
    {       
        return $this->_registry->registry('current_product');
    }   
}
?>

Printing current product data in your template (custom.phtml) file

if ($currentProduct = $block->getCurrentProduct()) {
    echo $currentProduct->getName() . '<br />';    
}

So when you get the current product object then get saleable attribute value using current product like below

<?php $saleable = $currentProduct->getSalebale(); ?>

then in above mentioned minicart.phtml add condition to show minicart only on Saleable product page. put all minicart code in condition like

<?php if($saleable): ?>
/******* Minicart content **********/
<?php endif; ?>

For this first you need to create one product attribute like Salebale with Yes/No value

then need to add condition on minicart.phtml

app/design/frontend/Yourpackage/Yourtheme/Magento_Checkout/templates/cart/minicart.phtml

Here First you need to get current prodcut as you need to hide minicart from product page so to get current product use below code

<?php 
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$product = $objectManager->get('Magento\Framework\Registry')->registry('current_product');//get current product
echo $product->getId();
echo $product->getName();
?>

Or Add bellow code in your block file. for example

app/code/Packagename/Modulename/Block/CustomBlock.php

<?php
namespace Packagename\Modulename\Block;
class CustomBlock extends \Magento\Framework\View\Element\Template
{
    protected $_registry;

    public function __construct(
        \Magento\Backend\Block\Template\Context $context,       
        \Magento\Framework\Registry $registry,
        array $data = []
    )
    {       
        $this->_registry = $registry;
        parent::__construct($context, $data);
    }

    public function _prepareLayout()
    {
        return parent::_prepareLayout();
    }

    public function getCurrentProduct()
    {       
        return $this->_registry->registry('current_product');
    }   
}
?>

Printing current product data in your template (custom.phtml) file

if ($currentProduct = $block->getCurrentProduct()) {
    echo $currentProduct->getName() . '<br />';    
}

So when you get the current product object then get saleable attribute value using current product like below

<?php $saleable = $currentProduct->getSalebale(); ?>

then in above mentioned minicart.phtml add condition to show minicart only on Saleable product page. put all minicart code in condition like

<?php if($saleable): ?>
/******* Minicart content **********/
<?php endif; ?>